 In the seventh and eighth centuries the island, along with Oléron, formed the "Vacetae Insulae" or Vacetian Islands, according to the "Cosmographia".Since "Vaceti" is another name for the Vascones, this reference is evidence of Basque (Gascon) settlement or control of the islands by that date.In 745, Hunald, the Duke of Aquitaine, retired to a monastery on the island.