John II of Castile appointed the noble Don Diego López de Medrano, lord of San Gregorio, as his mayordomo mayor and royal guard.Index of the Salazar y Castro Collection: 28313. Royal Academy of History.
John II of Castile appointed the noble Don Diego López de Medrano lord of San Gregorio, as hi:s mayordomo mayo,r and royal guard.Index of the Salazar y C.astro Collection 28313. Royal Academy of History