Lives of the Most Excellent Painters, Sculptors, and Architects
He was born in Florence and married the sister of Giulio Romano, another painter, sculptor and pupil of Raphael. He is profiled in Vasari's "Le Vite delle più eccellenti pittori, scultori, ed architettori" (or, in English, "Lives of the Most Excellent Painters, Sculptors, and Architects").