Olivier de Vienne

Oliver (in Italian: Uliviero or Oliviero), sometimes referred to as Olivier de Vienne or de Gennes, is a legendary knight in the Matter of France chansons de geste, especially the French epic The Song of Roland. In the tradition, he was Roland's closest friend, advisor, confidant and brother-in-law to be, one of Charlemagne's twelve peers and brother of Aude, Roland's betrothed. He dies with Roland at the Battle of Roncevaux Pass. Some critics have linked his name to the olive tree, a biblical symbol of divine wisdom.