Mayor Guillen de Guzmán Castilian aristocrat (1205–1262) (1205–1262) Parents Maria González Girón Guillén Pérez de Guzmán Children Beatrice of Castile Urraca Alfonso de Castilla Siblings Sancha Gil de Soverosa João Gil de Soverosa Dórdia Gil de Soverosa Pedro Núñez de Guzmán Nuño Guillén de Guzmán Partners Alfonso X of Castile and Leon