|Mayor Guillén de Guzmán
Mayor Guillén de Guzmán 1
Mistress of Alfonso X.
Mayor had a relationship with Alfonso X "El Sabio" King of Galicia, Castile and León, son of Fernando III of Castile King of Castile and Leon and Elisabeth of Hohenstaufen. (Alfonso X "El Sabio" King of Galicia, Castile and León was born on 23 Nov 1221 in Toledo, Castile, Spain and died on 4 Apr 1284 in Seville, Spain.)
Wikipedia.org, Beatrice of Castile (1242–1303).