Претензия на равенство с имераторами Римской империи (в то время Византии) как правило для внутриполитических разборок:
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.