Context : Caterina Sforza (1463 -- 28 May 1509), was an Italian noblewoman and Countess of Forlì and Lady of Imola firstly with her husband Girolamo Riario, and after his death as a regent of her son Ottaviano. 
Question : What is Caterina Sforza's spouse's name?
Girolamo Riario