¿Quién salió con Diana Guardato?

Diana Guardato was a member of the aristocratic Patrician Guardato family. She had at least two children with King Ferdinand I.

Her first child was Fernando de Aragón, 1st Duke of Montalto who married 1st, Anna Sanseverino, 2nd, Castellana de Cardona whose daughter Maria d'Aragona, married Antonio Todeschini Piccolomini, Duke of Amalfi, a nephew of Pope Pius II and brother of Pope Pius III.

Her second child was Giovanna d’ Aragona, who married Leonardo della Rovere, Duke of Arce and Sora, a nephew of Pope Sixtus IV and brother of Pope Julius II.

Fernando I (o Ferrante I) de Nápoles, también, Ferdinando Trastámara d'Aragona (Valencia, 2 de junio de 1423-Nápoles, 25 de enero de 1494) era el hijo ilegítimo de Alfonso V de Aragón y I de Nápoles y Sicilia y de su amante napolitana, Gueraldona Carlino.​

Intentando asegurar un buen futuro a su hijo ilegítimo, Alfonso V hizo que Fernando desposase en 1444 a Isabel de Chiaromonte, sobrina y presunta heredera del príncipe de Tarento, Giovanni Antonio Orsini del Balzo, sucesor de los derechos de los Brienne al trono de Jerusalén.​