William des Baux
William des Baux (c. 1213–1266) was a son of Raymond des Baux-Meyrargues and Alazacie of Marseille. He inherited the Provençal lordships of Berre, Istres and Lançon, and married Eugaris de Châteauneuf-Tournel. Their son Bertrand II served Charles of Anjou in Sicily.