William IX, Duke of Aquitaine

William IX, called the Troubadour, was the Duke of Aquitaine and Gascony and Count of Poitou between 1086 and his death. He was also one of the leaders of the Crusade of 1101. Though his political and military achievements have a certain historical importance, he is best known as the earliest troubadour—a vernacular lyric poet in the Occitan language—whose work survives.

22 October 1071

Born on the same birth day (22 October): Baby Keem • Daniel Melingo • Estela de Carlotto • Franz Liszt • Georges Brassens • Godfrey Chitalu • Günther Treptow • Haley Barbour • Jonathan Lipnicki • José Larralde • Kenji Ebisawa • Luke Adams (racewalker) • Manfred Trojahn • Marjorie Flack • Míchel Salgado • October 22 • Prince Ludwig Ferdinand of Bavaria • Qian Weijun • Raymond Bachand • Stiv Bators • Yvan Ponton