 There exist two diplomas dated to the reign of Alfonso III of Asturias and referring to him as emperor, but both are early twelfth-century fabrications emanating from the scriptorium of the Diocese of Mondoñedo and Bishop Gonzalo, designed to bolster that church's claims in a dispute of 1102.The first document, dated to 866 or 867, confirmed by Alfonso, who signs as "I, Alfonso, of all Spain emperor, who is unworthily permitted to be called the Catholic".The other refers to him simply as "Alfonso, Emperor of Spain" ("Adefonsus Hispaniae imperator").