Sancia di Castiglia
Sancia, Queen of Castile, believes her husband and son have died and plans to marry Saracen prince Ircano. Her son Garzia returns after surviving an assassination attempt that Ircano arranged. Ircano says he will marry Sancia only if she poisons Garzia, but she repents and drinks the poisoned cup herself, dying as she begs her son’s forgiveness.