Did Leonardo da Vinci leave a masterpiece unfinished behind a wall?

History · Published 8 October 2026 Swipe more like this →

In short: For centuries, rumors have persisted that Leonardo da Vinci’s lost masterpiece, The Battle of Anghiari, remains hidden behind a fresco in Florence’s Palazzo Vecchio. But new research suggests the legendary work might never have actually existed as a finished painting, existing only as preparatory sketches and failed experiments.

Commissioned around 1503 to decorate Florence’s seat of government, The Battle of Anghiari was intended to depict the 1440 clash between Florence and Milan. While the Florentine sculptor Benvenuto Cellini hailed the commission as a groundbreaking masterpiece, modern scholars are questioning whether the painting ever moved beyond the planning stages. The epic conflict portrayed in the work involved the forces of Milan and Florence. Today, we only know the composition through later copies by artists like Peter Paul Rubens and Gérard Edelinck.

The mystery centers on Leonardo’s experimental technique. He intended to prepare the wall by layering gesso and oil, a combination that art historians argue would have prevented paint from adhering to the surface. This technical inconsistency suggests the artist may have struggled to realize his vision on the wall itself. This flawed method of combining oil with gesso proved problematic for the wall's surface. Consequently, the artist's attempt to create a permanent mural was likely doomed from the start.

Evidence from 1503 to 1506 supports this skepticism; records show Leonardo purchased large quantities of gypsum and other supplies for preparatory work, but no paint was recorded. This has led some historians, such as Francesca Fiorani, to conclude the battle existed only as a cartoon. These historical documents provide a paper trail for the materials used during that period. Such findings suggest the project was halted before any pigment could be applied.

Despite this, the hunt for the painting continues. Since 1975, scholar Maurizio Seracini has investigated the theory that Renaissance artist Giorgio Vasari hid the work behind his own fresco in the 1560s. In 2011, Seracini’s team drilled holes into Vasari’s work and retrieved paint samples from a two-inch gap, a finding they claim is unique among the hall's frescoes. This specific discovery was reported by the Guardian in early 2012. It remains a central piece of evidence for those who believe the original work is still intact.

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