Why is Cesare Borgia such a significant example for Machiavelli in The Prince?

Why is Cesare Borgia such a significant example for Machiavelli in The Prince? What does
this example say about Machiavelli’s understanding of religion and the role of the Catholic
Church, since Borgia was the illegitimate son of pope Alexander VI? Finally, how does the
example of Cesare Borgia relate to Machiavelli’s understanding of the battle between fortune
and virtue? In your answer, make sure to relate your discussion of Cesare Borgia to the whole
text.