Cesare Borgia is born
Cesare Borgia is born around 1475. Leonardo da Vinci would later be a patron of Borgia from 1502 to 1503.
Mallett, Michael Edward. “Cesare Borgia.” Encyclopædia Britannica, Encyclopædia Britannica, Inc., 28 Mar. 2019, www.britannica.com/biography/Cesare-Borgia-duke-of-Valentinois.