“In the plaza de la Hora lies the ducal palace where the princess of Eboli was locked up and where she died”. Journey to the Alcarria, Camilo Jose Cela. Ana Mendoza de la Cerda, princess of Eboli, was a Spanish noblewoman. She belonged to one of the most important families of the Castilian nobility. She married Rui Gomez de Silva, prince of Eboli, when she was very young. He was very close to the king Phillip II.