Costanza Chiaramonte
Costanza Chiaramonte was the only daughter of Federico Chiaramonte, lord of Sutera, and sister of Manfredi I, Count of Modica. In 1296 her father received the barony of Siculiana from King Frederick III of Sicily and built the Castello di Chiaramonte there; on his death in 1311 she inherited the barony.
She first married Antonio del Carretto, margrave of Finale. Widowed, she married the Genoese nobleman Brancaleone Doria, governor of Sardinia. Her son Antonio del Carretto Chiaramonte later inherited Siculiana.