An unprecedented preparatory drawing by Michelangelo for the ceiling of the Sistine Chapel, discovered through a photo sent online to Christie’s, is set to debut at auction.
How the new Michelangelo drawing was discovered
The story begins in March 2025, when Giada Damen, a specialist in the Old Master Drawings Department at Christie’s, receives a routine notification on her computer.
An anonymous owner from the West Coast had uploaded some images through the auction house’s digital portal “Request an Auction Estimate.”
The photographs showed a small study of a foot, just 5¼ × 4⅝ inches, drawn in the typical red chalk favored by Renaissance masters. The work had come to the sender by inheritance from their grandmother and had remained in the same European family since the late 18th century, with an attribution never clarified.
“As soon as I saw the photo, I knew the quality was very high and that it belonged to the right era,” Damen recounted in a note from Christie’s. However, even sensing she was facing something special, the scholar chose not to rush to conclusions.
What does the study for the Libyan Sibyl consist of?
The sheet shows the right foot of the monumental Libyan Sibyl frescoed by Michelangelo on the Vatican ceiling. It is a preparatory study executed in red chalk, intended to precisely define the movement and anatomy of the figure.
The work will be offered by Christie’s New York on February 5, 2026, with an estimate between 1.5 and 2 million dollars. According to the auction house, it is the first undocumented study for the Sistine ceiling to reach the public market.
Moreover, the extremely small scale of the sheet, just over five inches on the longer side, allows for a close appreciation of the concentration of the line and the rapidity of the artist’s creative process.
How did the complex authentication process unfold?
Following the online notification, Damen initiated a six-month investigation. She traveled immediately to examine the drawing in person and, with the owner’s consent, transferred it to Christie’s New York headquarters for in-depth analysis.
The authentication process combined advanced technologies and traditional methods. Infrared reflectography revealed hidden drawings on the back of the sheet, concealed by the mounting board, compatible with 16th-century Italian handwriting in the orbit of Michelangelo.
The turning point came when Damen recognized striking similarities with a famous sheet housed at the Metropolitan Museum of Art in New York. The two works share the same red chalk, a similar technical setup, and studies connected to the Libyan Sibyl.
Additionally, a copy of the Met drawing held at the Uffizi Galleries in Florence provided the missing link: it reprises the same studies as the New York version but also includes the same foot depicted in the sheet presented by Christie’s.
What was the decisive moment of the comparison with the Met?
The authentication reached its peak when Damen organized a direct comparison between the two sheets in the study rooms of the Metropolitan Museum. “I was thrilled. It was evident that the two studies were the work of the same hand, at the same time,” she recalled.
From that close comparison, it emerged that the Christie’s drawing was executed simultaneously with the Met sheet, with the same red chalk and for the same monumental project.
While the New York drawing presents studies of the back, head, left foot, fingers, and left hand of the Sibyl, the new drawing depicts the right foot, effectively completing the iconographic “puzzle” after more than five centuries.
Both sheets also show anatomical studies in black chalk on the back, attributable to the unmistakable hand of the master. The drawing destined for auction reveals clear signs of having been cut from a larger sheet, in line with documented working methods for other Michelangelo preparatory studies.
What role did historical provenance play in the attribution?
The solidity of the attribution is reinforced by a characteristic brown ink inscription: “Michelangelo Bona Roti,” traced by a 16th-century hand. The same formula appears on several authenticated drawings of the artist, including the Met sheet, outlining a clear provenance trail.
Through this indication, scholars were able to trace the work’s journey from members of the master’s immediate circle in the 16th century to a 17th-century Italian collection. In the 18th century, the sheet entered the collection of Armand Louis de Mestral de Saint-Saphorin (1738–1806), a Swiss diplomat in the service of the King of Denmark, and then passed by family succession to the current owner.
That said, the drawing had never appeared on the market nor been cited in specialist literature. It remained in private hands for centuries, unknown to the academic community and absent from international institutional databases.
How does Michelangelo’s drawing connect to the Sistine Chapel ceiling
The new study is connected to one of the most famous enterprises in the history of Western art: the frescoes of the Sistine Chapel ceiling. The drawing is datable around 1511–1512, in the second phase of work on the vast vaulted surface.
The Libyan Sibyl occupies the eastern end of the ceiling and synthesizes Michelangelo’s mastery in anatomy and movement. The figure is depicted in an accentuated twist, with feet pressing firmly on the platform, supporting a body three times the natural size.
The red chalk study highlights the almost obsessive attention to anatomical details, one of the main reasons for the Florentine master’s fame among historians and collectors.
Why is this discovery crucial for the Old Masters market
The implications for the Old Masters market are significant. Of the approximately 600 Michelangelo drawings that have come down to us, only a small portion compared to the thousands produced, just about fifty are linked to the Sistine project. Even more relevant, fewer than 10 Michelangelo drawings are currently in private hands, while almost all are held in major museums.
“The discovery of a study linked to the Sistine Chapel, perhaps the keystone of the Italian Renaissance, is one of the most memorable moments of my career,” declared Andrew Fletcher, Global Head of the Old Masters Department at Christie’s. In his view, Giada Damen’s discovery, occurring over 500 years after the sheet’s execution, best embodies the auction house’s expertise.
Fletcher added that, in the field of Old Masters, it is hard to imagine a more significant find. He also highlighted the excitement of being able to offer the work for sale in New York on February 5, anticipating strong interest from international collectors.
How have international scholars and experts reacted
The attribution has received unanimous approval from leading international Renaissance art specialists, further bolstering the sheet’s authenticity. This consensus is based on years of study and peer comparison in the academic world.
“Making this discovery was a once-in-a-lifetime opportunity,” commented Damen, who leveraged decades of experience in this exceptional find. She explained that she studied the drawing for nine months with colleagues from the Old Master Drawings Department, expressing satisfaction in being able to now share the result with the public and the market.
Damen extended special thanks to the anonymous owner for the trust placed in Christie’s and for the ongoing collaboration. She also acknowledged the decisive contribution of the major experts consulted, all agreeing in recognizing the Michelangelo authorship of the sheet.
When and where will it be possible to see Michelangelo’s drawing before the auction
Before the sale in February, the public will have the opportunity to see this extraordinary find in person. The drawing will be exhibited at Christie’s King Street location in London from November 27 to December 2, 2025, in a temporary museum context.
Subsequently, the work will be presented in the free exhibition spaces of Christie’s at 20 Rockefeller Center in New York in February 2026, in the days leading up to the auction. It is a rare opportunity to closely admire an unpublished sheet by one of the greatest artists in history.
The intimacy of the format, just over five inches on the longer side, will allow visitors to appreciate the subtlest variations of stroke and the freshness of the artist’s creative gesture, normally perceptible only in studies on paper.
What does this case reveal about the potential for art discoveries today
This discovery demonstrates that, despite the widespread belief that all great masterpieces have been identified, there is still considerable room for new discoveries. In particular, the digital path that triggered the entire story shows how online platforms can facilitate the meeting between forgotten works and specialized expertise.
Moreover, the story highlights the irreplaceable role of connoisseurship in the authentication process. While scientific investigations and advanced imaging have provided important evidence, the discovery ultimately relied on the trained eye and deep art-historical knowledge of a specialist.
For a comparison with other recent attributions in the field, cases like the Flute Player by Gerrit Dou, sold for 3 million pounds, or important Fabergé pieces that have exceeded several million at auction can be recalled. In all these episodes, research and market have intertwined in a similar way.
What are the expectations for the auction of Michelangelo’s drawing
As the sale date approaches, the sector anticipates strong competition between museums and major private collectors. The combination of impeccable provenance, unanimous academic recognition, and direct connection to one of the most famous cycles in art history makes this sheet an exceptional trophy lot.
The estimated valuation between 1.5 and 2 million dollars reflects not only the intrinsic quality of the work but also its historical relevance and the extreme rarity of such testimonies. In this scenario, the case fits into the trend that has seen in recent years masterpieces by Old Masters, like important Rembrandt, reach record figures at auction.
For collectors, the opportunity to acquire an unknown Michelangelo drawing linked to the Sistine Chapel represents a generational chance, capable of redefining the profile of a collection. In an increasingly competitive market, the emergence of works of this magnitude is comparable to the great finds mentioned above and confirms how the Old Masters segment remains central even in the contemporary era.
Overall, the trajectory of this small red chalk sheet, from a photo sent without pretensions to the protagonist of a major international auction, testifies to how art history continues to reveal unexpected chapters. From Michelangelo’s worktable over 500 years ago to the spotlight of the global market, the work’s journey once again illuminates the ongoing dialogue between research, collecting, and shared cultural memory.
As expert in digital marketing, Amelia began working in the fintech sector in 2014 after writing her thesis on Bitcoin technology. Previously author for several international crypto-related magazines and CMO at Eidoo. She is now the co-founder and editor-in-chief of The Cryptonomist and Econique.
She is also a marketing teacher at Digital Coach in Milan and she published a book about NFTs for the Italian publishing house Mondadori, while she is also helping artists and company to entering in the sector. As advisor, Amelia is also involved in metaverse-related project such as The Nemesis and OVER.
