Vigoroso da Siena

Vigoroso da Siena — active documentably between 1276 and 1293 — stands as one of the most singular and enigmatic figures in the history of Duecento Italian painting. Working at the confluence of a powerful Cimabuesque tradition and the nascent Sienese pictorial school, he occupies a pivotal, if still partially obscure, position in the transition from Italo-Byzantine conventions toward the emerging Gothic sensibility that would define central Italian art in the early Trecento.

Origins and Family

The precise date and place of birth of Vigoroso da Siena remain unknown to modern scholarship. No contemporary document records either the year or the locality of his birth, and no notarial or ecclesiastical record has yet been found that might establish the circumstances of his early life with certainty. The sole document that provides any indirect chronological inference is the entry in the Biccherna register of the Comune di Siena for the second semester of 1276, in which the painter is recorded as paying the tax required to obtain Sienese citizenship, a civic procedure that could only be legally undertaken by an individual who had already reached adulthood.

Since the legal age of majority in late medieval Siena was twenty-five years, Raffaele Marrone, writing in the Dizionario Biografico degli Italiani (2020), has argued that Vigoroso must have been born no later than 1251 — and quite possibly earlier, given that craftsmen typically completed their apprenticeship some years before establishing independent civic and professional status. The Italian Wikipedia entry proposes, on this basis, a birth date of approximately 1240, a figure that appears plausible but must be understood as a scholarly estimate rather than a documented fact.

Vigoroso’s family background is equally obscure. The only possible reference to his paternity is found in a Biccherna record of 1281, cited by the eighteenth-century antiquarian Ettore Romagnoli, which mentions a guarantor (fideiussore) of the painter described as “Vigorosi claudi pictoris”. Romagnoli interpreted “claudi” as a genitive form of the proper name “Claudius,” suggesting that the painter’s father was a man called Claudio. However, Raffaele Marrone has pointed out that “claudus” in medieval Latin also means “lame” or “crippled,” and that given the extreme rarity of the name Claudius in Sienese records of the period, it is more likely that the term functions as a descriptive epithet rather than a patronymic, meaning that Vigoroso may simply have been known as “the painter Vigoroso, son of the lame man”.

No further relatives — siblings, a wife, children, or other kin — are mentioned in any surviving document, which is itself revealing of the painter’s marginal position within Sienese society. The social standing of a recently naturalized, non-native craftsman in a competitive medieval city like Siena would have been inherently precarious, and the absence of family connections to established Sienese lineages may well have contributed to the limited documentary trace that Vigoroso has left behind. What is clear is that the painter was definitively not a native Sienese, a fact that was noted already in the eighteenth century and that scholars have since used to interpret the distinctly non-Sienese character of his artistic formation. The possibility advanced by Luciano Bellosi — one of the foremost modern authorities on Duecento painting — that Vigoroso may have originated from Florence, or at least trained there, remains an intellectually compelling hypothesis, grounded in the deeply Florentine and specifically Cimabuesque character of the sole panel painting securely attributed to him, though it cannot be confirmed by any surviving document.

Patrons and Civic Context

The documentary record concerning Vigoroso’s professional activities is sparse but illuminating. It consists almost entirely of entries in the account books of the Biccherna¹, the principal financial magistracy of the Commune of Siena, which paid artists and artisans for a variety of civic tasks. This evidence, though meagre in volume, reveals a painter who was employed in an official capacity by the communal administration of Siena, suggesting that he had achieved a measure of professional recognition within the city’s artistic milieu. The earliest attestation of his name in the Sienese archives — the citizenship tax entry of 1276 — establishes that he was already a working painter (“pictor”) at that date, implying that his professional formation and early career must be sought outside Siena, in a context as yet unidentified by scholarship.

The most significant civic patronage that Vigoroso received came in the years 1292 and 1293, when he was paid on multiple occasions for decorating the covers of administrative registers belonging to various offices of the Commune of Siena. In January 1292, he received nine soldi² for painting the covers of the books of the camerlengo and the provveditori; in July of the same year he received a further ten soldi for the same type of work; and on 31 December 1293, he received ten soldi for decorating the cover of the register of the podestà’s officials with the latter’s coat of arms. These payments, while modest in monetary value, indicate that Vigoroso was a regular supplier of decorative services to the Sienese government and that he was trusted with the prestigious task of embellishing the official records of the commune’s highest magistracies. The decoration of Biccherna covers was a well-established practice in medieval Siena that attracted some of the most accomplished painters active in the city, and Vigoroso’s repeated engagement for such work suggests that he was regarded as a competent and reliable craftsman by the communal authorities.

A further document, reported by Guglielmo della Valle in 1782 and corroborated partially by Ettore Romagnoli, records that in 1293 Vigoroso worked in collaboration with another painter, a certain Rinforzato, and that a third artist, Petruccio di Dietisalvi, subsequently coloured a panel depicting the coat of arms of Messer Rinaldo da Spoleto, who had served as podestà of Siena. The precise nature of this collaborative enterprise remains unclear, since the original archival record cited by della Valle mentions only a payment to Petruccio di Dietisalvi for painting una tavola col’arme di messer Rinaldo da Spoleto già podestà, without explicit reference to Vigoroso or Rinforzato. This episode nonetheless reveals that Vigoroso was embedded in the network of painters active in Siena during the final decade of the thirteenth century and that he was capable of participating in collaborative undertakings with other artists. The figure of Rinforzato — whose name, meaning “reinforced” or “strengthened,” is itself unusual — does not otherwise appear in the Sienese documentary record, and it is possible that he was a journeyman or junior associate who worked in Vigoroso’s bottega or in close proximity to it.

The most important commission that can be associated with Vigoroso — the Dossale di Santa Giuliana, now in the Galleria Nazionale dell’Umbria in Perugia — was almost certainly executed for the Cistercian³ female monastery of Santa Giuliana in Perugia, probably at the instigation of the community’s ecclesiastical or lay patrons. Raffaele Marrone has noted that the theological programme of the altarpiece may be linked to the foundational patronage of the monastery itself, given that the institution owed its origins in part to the influence of Cardinal John of Toledo⁴, and that two of the saints depicted flanking the Virgin — John the Baptist and John the Evangelist — may allude directly to the cardinal’s given name. If this hypothesis is correct, then the commission of the dossale can be understood within the broader context of mendicant and ecclesiastical patronage of female Cistercian communities in central Italy during the second half of the thirteenth century. The Cistercians of Santa Giuliana were a community of enclosed nuns (sorores reclusae) whose visual programme was carefully regulated by the norms of claustral piety, and the altarpiece would have served as the principal devotional focus of their liturgical life, placed upon or behind the high altar of their conventual church.

The document recording the 1280 confiscation of goods from Vigoroso’s household for an unspecified legal condemnation, cited by della Valle, and the subsequent fine of fifty lire imposed in 1281 — a very substantial sum — suggest that the painter found himself in some kind of civic or juridical difficulty during the early phase of his Sienese residence. The fact that a certain Ranuccio Fortis de’ Montanini acted as guarantor for the payment of the 1281 fine is significant, since the Montanini were a notable Sienese family of the merchant class, and this association implies that Vigoroso had established social connections, however fragile, with at least some representatives of Sienese civic society. Whether the legal condemnations of 1280 and 1281 were of a professional, financial, or personal nature cannot be determined from the surviving evidence. The painter’s subsequent re-emergence in the communal records in 1292 and 1293 as a paid decorator of official registers suggests that any social or professional damage he may have suffered from these episodes was eventually overcome, and that his reputation survived sufficiently intact to sustain a modest but continuous patronage relationship with the Sienese commune.

Painting Style

The painting style of Vigoroso da Siena is defined, above all, by an intimate and direct dependence upon the artistic language of Cimabue — the great Florentine master whose revolutionary synthesis of Byzantine form and Western naturalism transformed the course of central Italian painting in the final decades of the thirteenth century. What makes Vigoroso’s Cimabuesque orientation so remarkable is precisely its unmediated and non-Sienese character: where the painters most active in Siena during the same period — including Guido da Siena, Dietisalvi di Speme, and the young Duccio di Buoninsegna — absorbed the lessons of Cimabue through the filter of the local “guidesca” tradition, Vigoroso appears to have received those lessons directly and at an early stage, in a cultural context that may have been Florence itself.

The sole securely documented work, the Dossale di Santa Giuliana (Galleria Nazionale dell’Umbria, Perugia, inv. no. 32), dated by inscription to 1291, provides the primary evidence for any analysis of his style. The panel is executed in tempera on a gold ground and presents the enthroned Virgin and Child in the central compartment, flanked by Saints Mary Magdalene, Julian, John the Baptist, and John the Evangelist in the four lateral registers, with the Redeemer Blessing depicted in the central apical cusp and four adoring angels in the lateral cusps. The figures are notably elongated in their proportions, a characteristic that Luciano Bellosi and subsequent scholars have connected to the stylistic features of Cimabue’s works of the 1270s and early 1280s, particularly the painted Cross of Santa Croce in Florence and the Maestà now conserved at the Musée du Louvre in Paris, both of which pre-date the Assisi frescoes.

The chiaroscuro modelling employed in the dossale is of exceptional refinement. The lights on the faces and hands are applied in the thinnest of brushstrokes using lead white (biacca), producing a delicate and transparent effect that Bellosi described as “modellato finissimo e trasparente”. This technique of illuminating forms through subtly hatched strands of white paint — executed with a nearly calligraphic precision at the tip of the brush — is one of the most conspicuous Cimabuesque features of the panel and distinguishes it sharply from the bolder and more opaque handling characteristic of native Sienese painters of the same generation. The Eternal Father Blessing in the central cusp, which is the best-preserved figure in the entire work, offers the most vivid demonstration of this quality, with the flesh tones rendered in a subtle progression from warm ochre shadows to pale, luminous highlights.

The chromatic range of the dossale is equally characteristic. The palette includes a raspberry-red for the mantle of Saint John the Evangelist, a muted “putrid green” (verde marcio) for the mantle of Saint Julian, and a pale enamel pink for the mantle of the Eternal Father in the cusp — colours that, as Bellosi noted, had already appeared in the works of the preceding generation of Sienese painters and recur in Duccio di Buoninsegna. This suggests that Vigoroso, while preserving a fundamentally non-Sienese pictorial vocabulary, was not entirely impermeable to the chromatic conventions of his adopted city. The gold ground is handled with great technical assurance, serving not merely as a decorative backdrop but as a metaphysical field of divine light against which the sacral figures are presented as icons rather than naturalistic representations.

The frontal, symmetrical disposition of the adoring angels in the lateral cusps, with their wings spread in perfect bilateral symmetry, reflects a deeply Byzantine compositional habit that Vigoroso shares with Cimabue’s workshop. The abstractive deformations visible in the treatment of faces and hands — the enlarged eyes, the flattened noses, the attenuated fingers — are also features that point to a formation within the Cimabuesque orbit rather than to any specifically Sienese tradition. The preparatory underdrawing revealed by reflectographic examination of the panel in 1986 showed thick but well-ordered and clean strokes, technically coherent with a group of five partially coloured drawings on parchment preserved in the Gabinetto dei Disegni e delle Stampe of the Uffizi in Florence (inv. 1E, 2E, 5E, 6E, 7E), to which Bellosi attributed a significant role in the reconstruction of Vigoroso’s oeuvre.

The structural design of the Dossale di Santa Giuliana is no less significant than its painterly qualities. The altarpiece stands as an important morphological link between the earlier tradition of the low-gabled dossal and the fully articulated Gothic polyptych. Its five distinctly differentiated apical cusps — of which the central one is taller and broader than the four lateral ones — give the panel a markedly “modern” silhouette for its date, anticipating the formal complexity that would characterise Trecento polyptychs. John White, in his fundamental study Duccio: Tuscan Art and the Medieval Workshop (1979), observed that this formal precocity is one of the most intellectually striking aspects of the work.[

The relationship between Vigoroso’s style and that of his Sienese contemporaries is one of the most debated questions in the scholarship devoted to his work. While he clearly absorbed certain chromatic habits from the Sienese milieu, the fundamental grammar of his forms owes nothing to the “guidesca” tradition — the long shadow of Guido da Siena — that permeated virtually every other painter active in the city during the 1270s and 1280s. His dossale shows no trace of the elongated, hieratic linearity associated with Guido da Siena’s Madonna panels, nor does it exhibit the warm, almost luminous Byzantine opulence that characterises Dietisalvi di Speme. In this sense, Vigoroso stands apart from his contemporaries as a painter whose formation was accomplished elsewhere, whose artistic identity was consolidated before his arrival in Siena, and whose style underwent no fundamental transformation after that arrival.

Artistic Influences

The dominant and formative influence upon Vigoroso’s pictorial language was unquestionably Cimabue. Scholars from Luciano Bellosi to Raffaele Marrone have consistently observed that the dossale of Perugia is more deeply marked by the teaching of the great Florentine master than any other Sienese panel of the second half of the Duecento — a circumstance that strongly suggests a direct and personal contact with Cimabue’s work, rather than a mediated transmission through the intermediary of other artists. The specific works of Cimabue that appear most relevant to Vigoroso’s formation are those datable to approximately the eighth and ninth decades of the thirteenth century: the painted Crucifix of Santa Croce in Florence, and the Maestà (Madonna and Child Enthroned) now in the Musée du Louvre in Paris — works that precede Cimabue’s mature activity in the Upper Basilica of San Francesco at Assisi and that represent an earlier, perhaps more severe phase of his development. The elongated figures, the darkened flesh tones rendered with an ochre-brown base still redolent of Byzantine sankir, and the finely hatched white highlights are all features that the dossale of Perugia shares with these early Cimabuesque panels rather than with the more dynamically expressive Assisi frescoes.

The pre-Cimabuesque, Byzantinizing stratum of Vigoroso’s formation — which may represent the earliest phase of his training, before he converted to the new pictorial language — is discernible in certain residual elements of the dossale that scholars such as Donati and Bellosi have characterized as archaisms. The strict frontality of the figures, the gold striations used to render the folds of drapery (chrysography), and the somewhat hieratic stiffness of the Virgin’s posture all echo the conventions of Byzantine panel painting as they were understood and practiced in central Italy during the mid-thirteenth century. It is plausible, as Marrone has proposed, that Vigoroso received an initial formation in this Italo-Byzantine idiom — perhaps in Florence, or in a Tuscan centre still closely tied to Byzantium — and that only subsequently did he encounter the revolutionary example of Cimabue and reorient his art accordingly.

The influence of the Sienese pictorial environment, while secondary, is not entirely absent from Vigoroso’s work. The distinctive chromatic choices visible in the dossale — the raspberry reds, the green draperies, the pale enamel tones — can be paralleled in the works of Sienese painters such as Rinaldo da Siena (the Maestro delle Clarisse) and Guido di Graziano (the Maestro del Dossale di San Pietro), suggesting that Vigoroso was not entirely insensible to the visual culture of his adopted city. These chromatic affinities, however, are superficial rather than structural: they concern the painter’s palette rather than his fundamental approach to form, volume, and modelling. The conceptual syntax of the dossale — its spatial organization, its handling of light and shade, its rendering of physiognomy — remains profoundly Cimabuesque throughout.

The relationship between Vigoroso and the young Duccio di Buoninsegna is another dimension of the question of influences that deserves careful consideration. Both painters were active in Siena during the same period, and both were engaged with the Cimabuesque revolution, yet the dossale of Perugia shows no evidence of any direct influence from Duccio or of any mutual dialogue between the two artists. This is all the more remarkable given that Duccio, by 1291, had already produced works of outstanding quality and originality that were reshaping Sienese painting. The absence of any Ducciesque inflection in Vigoroso’s panel suggests either a deliberate conservatism on his part, an unwillingness or inability to engage with the most advanced pictorial thinking of his time, or perhaps a degree of professional and social distance between the two painters that prevented the usual osmosis of influence.

The group of drawings attributed to Vigoroso by Bellosi — the five partially coloured sheets in the Uffizi (1E, 2E, 5E, 6E, 7E) and the illuminated initial “M” with the Twelve Apostles at the Fondazione Giorgio Cini in Venice (inv. 55) — represents a further dimension of his artistic formation, if the attribution is accepted. These works show the same Cimabuesque stylistic features as the dossale, and their technique — rapid, confident, calligraphic line drawing with minimal tonal gradation — is consistent with the underdrawing revealed by the reflectographic examination of the Perugia panel. However, Raffaele Marrone has more recently called this attribution into question, noting that even Bellosi himself expressed reservations in his later writings about the coherence of these miniatures with the Perugia dossale. The question of whether Vigoroso was indeed a miniaturist as well as a panel painter remains therefore unresolved, pending further technical and stylistic analysis.

Travels and Geographical Connections

The question of Vigoroso’s travels and geographical movements is central to an understanding of his artistic personality, yet it is one that the surviving documentary evidence answers only partially and indirectly. The fundamental fact established by the Biccherna record of 1276 — that he was not a native of Siena and paid to obtain citizenship there — implies that he had lived and worked elsewhere before settling in the city, but the documents do not reveal where he had previously resided or trained. Luciano Bellosi’s hypothesis that Vigoroso may have originated from, or at least trained in, Florence is the most widely discussed proposal in the recent scholarship, and it rests upon the wholly non-Sienese and intimately Cimabuesque character of the dossale of Perugia, which suggests a formation achieved in close proximity to the Florentine master’s workshop. Florence, where Cimabue’s influence was strongest and most immediate during the 1260s and 1270s, remains the most plausible candidate for the painter’s pre-Sienese activity, though other Tuscan or central Italian centres cannot be entirely excluded.

The relationship between Vigoroso and Perugia constitutes another significant geographical dimension of his career. The Dossale di Santa Giuliana was executed for a Cistercian monastery in Perugia — one of the most important urban centres of Umbria — and its completion in 1291 implies that Vigoroso either traveled to Perugia to execute the work in situ or that the commission was managed remotely, with the finished panel transported from Siena to its destination. Marrone explicitly notes that no document records a stay by Vigoroso in Perugia, and that the painter appears to have been based in Siena both immediately before and after the execution of the altarpiece. Given the logistical difficulties of panel painting in the medieval period, it is likely that a work of this scale and complexity was executed in the painter’s workshop in Siena — where he is documented as residing in the contrada of San Donato, in the terzo di Camollia — and then transported overland to Perugia for installation. This was a common practice among Tuscan painters of the period, several of whom executed important altarpieces for Umbrian patrons without leaving any evidence of extended residence in Umbria.

The possible Florentine origins or training of Vigoroso remain, as Bellosi candidly acknowledged, no more than a “suspicion” (un sospetto) — a scholarly hypothesis grounded in stylistic inference rather than documentary evidence. Nevertheless, the hypothesis is consistent with what is known of artistic circulation in central Italy during the latter half of the thirteenth century, when Florentine painters, sculptors, and craftsmen moved with considerable freedom between the major Tuscan and Umbrian cities in search of commissions, training, and patronage. Florence, Siena, Perugia, Pistoia, and Assisi were all interconnected nodes within a regional artistic network, and it would have been entirely natural for a painter of Vigoroso’s evident quality and ambition to have moved between them at various stages of his career. The documented presence of Cimabue’s influence in Siena — visible not only in Vigoroso’s work but also in those of Guido di Graziano and the young Duccio — confirms that this geographic circulation of ideas and models was a defining feature of the period.

The final document relating to Vigoroso — the Biccherna record of 31 December 1293 — places him firmly in Siena, where he received payment for painting the cover of the podestà’s register. There is no evidence of any further travel or professional activity after this date, and the painter presumably spent the remainder of his life in Siena, the city in which he had established his residence and professional identity. Whether he died shortly after 1293 or lived on into the following decade is unknown, since no death record for him has been identified in the Sienese archives. The Italian Wikipedia entry proposes a date of death of approximately 1295, which is consistent with the cessation of documentary references after 1293 but which must equally be treated as an estimate rather than an established fact.

Death

The date and cause of death of Vigoroso da Siena are unknown. The last documentary evidence of his activity is the Biccherna payment of 31 December 1293, and no subsequent record bearing his name has been identified in the Sienese archives. The absence of any further documents after this date has been interpreted by most scholars as indicating that the painter died shortly thereafter — the Italian Wikipedia entry proposes a date of approximately 1295 as a working hypothesis — but no death register, no testamentary document, and no commemorative inscription has been found that would confirm this supposition. The cause of death is entirely unknown.

Principal Works

The corpus of works securely attributed to Vigoroso da Siena is, by the standards of medieval Italian painting, exceptionally narrow. Only one panel painting bears his signature and a date, and the few additional attributions that have been proposed by scholars remain contested or tentative. This very scarcity makes the surviving autograph work all the more precious as a document of his artistic personality.

Altarpiece of Saint Juliana

The Altarpiece of Saint Juliana (1291) by Vigoroso da Siena is the only work by the artist that is both signed and dated with certainty, and is considered a masterpiece of 13th-century Italian painting. It is a tempera panel on a poplar wood support, housed at the National Gallery of Umbria in the Palazzo dei Priori in Perugia. The work is executed in tempera on poplar panel, with a supporting structure consisting of three crossbars nailed to the side panels and the top and bottom edges. The perimeter frame is crafted separately and attached to the panel on the front side.

The entire front surface is covered by a medium-density canvas armature, coated with multiple layers of plaster and glue of progressively decreasing thickness—a technique typical of medieval preparation for tempera painting. The five small arched frames were partially carved into the wood of the supports themselves and finished with moldings above.

The preparatory drawing was executed using a compass for the halos and freehand for the outlines of the figures and the decorations on Saint Juliana’s crown. As revealed by IR reflectography, the dark-colored brush drawing is almost entirely faithful to the subsequent application of color. The exact dimensions are not publicly documented in the available records, but the format is horizontal, with five prominent cusps of varying heights—the central one taller than the side ones.

The structure of the altarpiece is described as “very modern” for 1291: the five pronounced and distinct cusps already foreshadow the form of the 14th-century polyptych, while maintaining the horizontal arrangement of the panels typical of older works.

The background is entirely gilded, in accordance with Byzantine tradition, and the figures are set within separate arches that give the whole a unified architectural composition.

At the center dominates the Madonna and Child Enthroned (Theotokos), the principal and largest figure. The Virgin is seated facing forward on a monumental throne, with the Child blessing from her lap. The style is strongly Cimabuesque: expressions charged with pathos, cool and transparent colors in the garments, and bold volumetric modeling. Directly above the central group, in the central cusp, is depicted the blessing Eternal Father (sometimes identified as the blessing Christ) in a position of glory, with a gesture of blessing.

On either side of the Madonna, in the four side sections, are the work’s titular saints:

• Saint Mary Magdalene (on the left), depicted with her traditional attributes, in elegant robes, likely holding the jar of ointments.

• Saint John the Baptist (on the left), wearing a camel-hair cloak and holding a scroll with the prophetic inscription.

• Saint John the Evangelist (on the right), with the Gospel book, depicted as the beloved young apostle.

• Saint Juliana of Nicomedia (on the right), depicted in regal robes with a crown, a saint of great devotional significance for the Cistercian community of the Monastery of Saint Juliana in Perugia, formally established in 1253.

In the four side spandrels, above each of the saints, four angels are depicted, arranged symmetrically to complete the upper register of the work.

The altarpiece was originally intended for the church of the Cistercian monastery of Santa Giuliana in Perugia, and the connection to that religious community explains the prominent presence of the titular saint. The date 1291 was established only thanks to the restoration carried out in the 1990s, which made it possible to decipher the inscription along the lower edge—previously, the work was believed to date to 1276 or 1280.

This discovery has put the painter’s apparent “precocity” relative to Cimabue into perspective, while confirming his role as the primary vehicle of Cimabue’s influence in Umbria: the work is described as the “moment of greatest impact of Cimabue’s painting on Umbria” according to Luciano Bellosi. Notably, although painted in 1291 when Duccio di Buoninsegna was already fully established in Siena, the altarpiece shows no affinity with the Sienese master, remaining anchored to the early Cimabue of the Maestà in the Louvre and the Crucifix of Santa Croce.

Attributed Miniature at the Fondazione Cini (Venice)

The work is an illuminated page—more precisely, an initial letter, the “M”—in which the very structure of the letter serves as an architectural frame to enclose the figures of the Twelve Apostles. This type of work, known as an initial letter, was one of the most refined forms of medieval book production, in which the initial is not merely decorated but becomes the narrative and iconographic container of the image. It is dated to the second half of the 13th century, thus contemporary with or slightly preceding the famous Dossale of Perugia from 1291.

The medium is parchment, and the technique is that of miniature painting, that is, painting with water-based pigments and organic binders typical of medieval book production. The style reflects the Sienese-Byzantine pictorial tradition, with the figures of the apostles arranged in a frontal and hierarchical manner, typical of 13th-century iconography. Byzantine influences are evident in the rigidity of the poses, the rich coloration of the drapery, and the use of gold as a background or ornamental element—characteristics typical of 13th-century Italian miniature painting.

The attribution to Vigoroso was proposed by art historian Luciano Bellosi, who linked this illuminated page to the artist’s documented activity as an illuminator. The Giorgio Cini Foundation in Venice, which houses the work, possesses one of the most important collections of medieval illuminated manuscripts in Italy, placing this folio within a collection of the highest caliber. The work constitutes a precious testament to Vigoroso’s versatility, as he was able to translate his pictorial language—characterized by volumetric solidity and expressive tension derived from Cimabue—into the small and refined scale of book illumination.