Portrait of a Man in Red Chalk

The portrait of a man in red chalk (circa 1510) in the Biblioteca Reale, Turin is widely, though not universally, accepted as a self portrait of Leonardo da Vinci. It is thought that Leonardo da Vinci drew this self-portrait at about the age of 60. The portrait has been extensively reproduced and has become an iconic representation of Leonardo as a polymath or "Renaissance Man". Despite this, some historians and scholars disagree as to the true identity of the sitter.