Gauthier D OSTREVANT

   FamilySearch ID: GB6M-FM1.

Gauthier married Adélaïde 'Blanche' d'Anjou regina consort de France, Comtesse de Toulouse et de Provence, daughter of Foulques II d'Anjou Comte d'Anjou and Gerberge de Gâtinais Comtesse d'Anjou. (Adélaïde 'Blanche' d'Anjou regina consort de France, Comtesse de Toulouse et de Provence was born about 940, died on 29 May 1026 in Avignon, France and was buried in 1026 in Montmajour Abbey, France.)