Who is listed as XXX father?
Guillén Pérez de Guzmán
Guillén Pérez de Guzmán (ca. 1180--1233), a member of the House of Guzmán, one of the most aristocratic of the Kingdom of Castile, was the maternal grandfather of Queen Beatrice of Castile, Queen Consort of Portugal as the wife of King Alfonso III. His father was Pedro Rodríguez de Guzmán--killed in the Battle of Alarcos on July 18, 1195and son of Rodrigo Muñoz de Guzmán--and Mahalda With his brothers Nuño and Theobald, he fought alongside King Alfonso VIII at the decisive Battle of Navas de Tolosa in 1212.
Pedro Rodríguez de Guzmán