A painting signed "L daVinci" has been the subject of recent research conducted by scientists at Uppsala University in Sweden. The artwork, which depicts Roman Emperor Domitian, was once attributed to the famous Renaissance painter Titian after it was sold at Christie's in London in the 1920s. Later, a signature reading "L daVinci" was discovered, prompting new questions about its origins. Researchers Jakob Thyr and Tomas Edvinsson from the Division of Solid State Physics used a technique called Raman spectroscopy to analyze the painting's materials. This method allows scientists to study the chemical and structural properties of materials without damaging the artwork. The analysis identified 13 different pigments used in the painting. Twelve of these are traditional materials commonly used during the Middle Ages or the Renaissance. However, two areas of the painting contain Prussian blue, a synthetic pigment that was not available until the early 18th century. This finding is significant because it suggests that those parts of the painting were added after the time of Leonardo da Vinci and Titian, both of whom died in the 16th century. The presence of Prussian blue does not automatically mean the entire painting is a forgery. Many older artworks undergo restoration or retouching over time. X-ray examinations of the painting revealed changes in the area with Prussian blue, particularly in the laurel wreath on Emperor Domitian’s head. Some leaves visible on the surface of the painting do not appear in the X-ray images, suggesting that these areas may have been retouched or altered in more recent times. This study demonstrates how modern materials science can be used to analyze historical artworks. Techniques originally developed for studying contemporary materials are proving valuable in uncovering the history and authenticity of older paintings. The findings, published in the journal Materials Today Advances, add to the ongoing research into the painting’s origins and its complex history.