 The only charter that styles Sancho "emperor" is a later forgery found in the cartulary of San Juan de la Peña that reads, "Sancho, King and Emperor in Castile and in Pamplona and in Aragon and in Sobrarbe and in Ribagorza".In a certain charter Sancho III issued in 1032, while he was in La Rioja, and preserved in the cartulary of Albelda, he refers to the city of León as the "imperiali culmine" ("summit of the empire")