““MAIN CHARACTERS Cesare Borgia (c. 1475–1507). Italian warrior, illegitimate son of Pope Alexander VI, subject of Machiavelli’s The Prince, Leonardo employer. Donato Bramante (1444–1514). Architect, friend of Leonardo in Milan, worked on Milan Cathedral, Pavia Cathedral, and St. Peter’s in the Vatican. Caterina Lippi (c. 1436–1493). Orphaned peasant girl from near Vinci, mother of Leonardo; later married Antonio di Piero del Vaccha, known as Accattabriga. Charles d’Amboise (1473–1511). French governor of Milan from 1503 to 1511, Leonardo patron.””