Aymeri de Narbonne is a legendary hero of Old French chansons de geste and the Matter of France. In the legendary material, as elaborated and expanded in various medieval texts, Aymeri is a knight in the time of Charlemagne's wars with the Saracens after the Battle of Roncevaux Pass. He is son of Hernaut and the grandson of Garin de Monglane. He conquers the city of Narbonne, marries a princess named Hermengarde or Hermenjart, and fathers seven sons (Guibert, Bernart, Guillaume, Garin, Hernaut, Beuve and Aymer), the most famous being Guillaume d'Orange, the hero of several popular chansons de geste.