Sancho III of Navarre
Up to this point the area of the river Adour was referred to as the County of Vasconia after the early 9th century. According to many authorities, Duke Sancho VI of Gascony ceded Labourd and its ports, Bayonne and Biarritz, to King Sancho III of Navarre around 1023, and Sancho in turn bestowed it on his majordomo, Lope Sánchez, as viscount. This Lope was supposedly the king's relative, being a nephew of King Ramiro Garcés of Viguera. This oft-repeated story has no basis in contemporary documents, and there is no evidence that Navarre extended its territory north of the Pyrenees prior to the late 12th century.