His father, Sforza, having been engaged by Queen Johanna of Naples, left her unprotected, so that she was forced to throw herself into the arms of the King of Aragon, in order to save her kingdom.
Sforza suo padre, sendo soldato della regina Giovanna di Napoli, la lasciò in un tratto disarmata; onde lei, per non perdere el regno, fu constretta gittarsi in grembo al re di Aragonia.