Tanzanite's Castle Full of Books

Well, it looks like it may be a Borgia week around the castle.  I'm finishing up a non-fiction book about Lucrezia (reviews for this book and one for Madonna of the Seven Hills by Jean Plaidy should both be posted this week) and decided on Cesare for this week's Mosaic.  There seems to be some uncertainty about his date of birth - either 1475 or 1476 - and from an early age his future belonged to the church.  After his father became Pope (Alexander VI), Cesare was made a cardinal around the age of 18 (having been made a bishop a few years earlier).  His jealousy of his brother Juan led many to suspect that he was involved in his brother's murder and his close relationship with his sister Lucrezia led to rumors that they were closer than they should have been.  Following Juan's death, Cesare resigned his position as a cardinal in order to take up a military career.  He was killed during a siege in 1507. 

This is an alleged portrait of Cesare.  While looking for portraits of the Borgia family members, I was surprised at how few there are.