Question: What is the name of the man who had an affair with Sancha of Aragon?
Sentence (from "Sancha of Aragon"): There Sancha became friends with her sister-in-law Lucrezia, and allegedly had affairs with both of her husband's older brothers: Juan Borgia, 2nd Duke of Gandia, also known as Giovanni Borgia, and Cesare Borgia.
Relevant evidence: Yes