Researchers have successfully extracted DNA believed to belong to the renowned artist and inventor Leonardo da Vinci from a red chalk drawing known as Holy Child. The microscopic Y-chromosomes found on the artwork were compared to DNA from a letter written by one of Leonardo’s cousins, indicating a genetic link to individuals with shared ancestry in Tuscany, the birthplace of da Vinci.
Although confirming the authenticity of the da Vinci DNA is challenging due to the lack of known descendants and disturbances at his burial site in the 19th century, scientists consider this discovery a promising lead towards identifying genetic material associated with the master himself.
By analyzing skin flakes, sweat residue, fibers, pollen, and dust collected from the drawing and letters in Italian archives, researchers found traces of male human DNA amidst genetic material mainly consisting of microbes, plants, and fungi. Comparisons with extensive databases revealed genetic matches linked to southern Europe, particularly Italy, North Africa, and parts of the Near East, aligning with Leonardo’s Tuscan heritage.
In addition to human DNA, the study also unveiled insights into the origins and journey of the Holy Child. Plant species native to the Arno River basin in Tuscany, such as Italian ryegrass and willows commonly used in period workshops, along with citrus DNA, were identified. However, the exact source of the human DNA traces, including whether they originated from Leonardo himself, remains unverifiable due to centuries of handling, restoration, and storage leading to potential contamination from various individuals.
Future research aims to differentiate ancient, artifact-related DNA from modern contaminants to advance the understanding of the genetic legacy associated with Leonardo da Vinci.