Illegitimate son of Enrique II of Castile and of Doña Beatriz Ponce. Was betrothed to a very young Beatriz of Portugal, daughter of King Fernando and Queen Leonor Teles (1376). [Fernando, ch. 96] Fradarique duque de Benavente Chronicle entries in which Fadrique, Duke of Benavente appears: Crónica de D. Fernando, ch. 96: 2, 7, 26