Question: When did Lucrezia Borgia's mother die?
Sentence (from "Lucrezia Borgia"): Her family arranged several marriages for her that advanced their own political position including Giovanni Sforza, Lord of Pesaro and Gradara, Count of Catignola; Alfonso of Aragon, Duke of Bisceglie and Prince of Salerno; and Alfonso I d'Este, Duke of Ferrara.
Relevant evidence: No