Duke of Aquitaine and the first of the noble troubadours. His are the first of the troubadour songs to survive. His art had great influence on mediaeval literature and the concept of courtly love. His daughter Eleanor became Queen of England and was a patron of troubadours, especially Bernart de Ventadour; her son Richard I was a trouvère. Eleven of William's poems survive, but the only extant melody is incomplete.