One section of the cycle, however, is devoted to the feats of his father, there named Aymeri de Narbonne, who has received Narbonne as his seigniory after his return from Spain with Charlemagne. Details of the "Aymeri" of the poem are conflated with a later historic figure who was truly the viscount of Narbonne from 1108 to 1134. In the "chanson" he is awarded Ermengart, daughter of Didier, and sister of Boniface, king of the Lombards. Among his seven sons and five daughters (one of whom marries Louis the Pious) is William.