BiographyHe was the illegitimate son of Messer Piero Fruosino di Antonio da Vinci, a Florentine notary, and Caterina, a peasant.. There is some evidence that Caterina may have been a slave from the Middle East. Leonardo had no surname in the modern sense, "da Vinci" simply meaning "of Vinci": his full birth name was "Leonardo di ser Piero da Vinci", meaning "Leonardo, son of (Mes)ser Piero from Vinci.