Borgia was the son of Pope Alexander VI. He is said to have influenced all European art depicting Jesus. It's widely accepted that the classic depiction of Jesus is not accurate, because Jesus would have not have looked like a white European. Many scholars believe that Cesare Borgia was the basis for some depictions of Jesus that eventually became the standard look that is used until today.
At the time, the Pope was allowed to marry. Pope Alexander VI, however, was known for having many mistresses. In 1476, Cesare Borgia was born as an illegitimate child of the Pope.
He was the Pope’s favorite son and by 15 years old was the Bishop of Pamplona. He became Cardinal by his 18th birthday. Cesare is said to have had his older brother Giovanni assassinated out of envy.