GUILLAUME Bertran (-after 1288). "Robertus Bertran" granted property to "Roberto Brienchon" by charter dated to before 1204, witnessed by "Willelmo Bertran, Roberto Bertran juniore filiis meis"[2124]. A document dated 27 Jul 1381 in litigation in the Paris parliament names "messire Robert et messire Guillaume Bertran, chevaliers" as the children of "messire Robert Bertran" and his wife[2125]. Seigneur de Thury et de Tuit. Philippe III King of France confirmed the grant of la baronnie de Faugernon by "Roberti Bertrandi militis domini de Roncheville et de Briquebec" to "Guillaume Bertran mon frere" by charter dated Mar 1274[2126]. m JEANNE, daughter of --- (-after 10 Mar 1312). "Guillaume Bertran chevalier, seignour de Fauzgernon" granted "le fieu de la visconté de Fontenay le Marmion" to "Robert Bertran escuier son frere" by charter dated 3 Jan 1309, which names "madame Jehane, jadis fame [de] monsieur Guillaume lour pere, mere des diz monsieurs Guillaume et Robert"[2127]. "Robert Bertran escuier…madame Jehane sa mere" issued a charter dated 10 Mar 1312 relating to her property[2128]. Guillaume & his wife had six children