[<6>] 1255, Alfonso X de Castilla y León (1252-1284). Source: an Paris J 601 no 25. Medieval Advisor/Pavel Alekseychik (ORCID 0000-0002-4081-3917). Copyright sigilla.org. {{wiki:seals-446-1255-alphonse_x_de_castille-an-paris-j_601_no_25.jpg}}