Famed artist and inventor Leonardo da Vinci suffered from a crippled right hand late in life, usually attributed to a stroke. In a new paper in the Journal of the Royal Society of Medicine, two Italian researchers argue that Leonardo more likely suffered from a condition colloquially known as “claw hand.” They base their argument on analysis of a 16th century portrait of en elderly Leonardo.
The quintessential Renaissance man was the illegitimate son of a Florentine notary named Piero Frusino di Antonio da Vinci. (His mother, Caterina, was a peasant.) Much of what we know about Leonardo’s life comes from the writing of the 16th century painter and historian Giorgio Vasari, in Lives of the Most