Guillaume des Baux, seigneur d'Istres

-http://fmg.ac/Projects/MedLands/provaixmar.htm#GuillaumeBauxdied1265B

GUILLAUME de Baux, son of RAYMOND de Baux Vicomte de Marseille & his wife Alasacie de Marseille (-[23 Jan 1265/7 Jun 1266]). "Raymond de Baux son épouse et ses fils" reached agreement with "Spine de Surrexina podestat de Marseille" concerning the monastery by charter dated 20 Nov 1225, "Adalasie son épouse, Bertrand et Guillaume ses fils…Raymond de Baux son autre fils" swearing to observe the agreement[914]. “Raymundus de Baucio major, Raymundus et Willelmus filius eius, Barallus de Baucio filius domini Hugonis de Baucio, Raymundus de Baucio de Aurasica, Geraudus Amicus et Willelmus de Sabrano fratres [error]” agreed to respect the decision of Emperor Friedrich II concerning the war between Toulouse and Provence by charter dated Mar 1233[915]. Seigneur de Berre. "Guillaume de Baux I de Berre, âgé de plus de 25 ans" donated property to the monastery of Saint-Césaire, Arles, for the souls of his father and mother, on the advice of "Raymond-Hugues de Baux, son oncle paternel", by charter dated 25 Nov 1237[916]. "Guillaume de Baux seigneur de Berre fils et héritier du vicomte Raymond seigneur de Meyrargues" confirmed a sale to the hospitallers at Calissane by charter dated 2 Oct 1251[917]. He died before 7 Jun 1266 when his son Bertrand swore allegiance for his properties as cited below.

m ---. The primary source which confirms the name of Guillaume’s wife has not been identified. Pithon-Curt names her “Eugaris de Tournel” (no source cited)[918].

  Guillaume & his wife had three children: