GUILLAUME [I] de Béthune ([1080/1095]-20 Mar 1138). An undated charter records that "Dominus Robertus Bituniensis et idem advocatus Attrebatensis", after donating "terræ...Fauerils" to Saint-Eloi, wished to retain part of the land himself, witnessed by "Guillelmus filius ipsius Roberti, Sicherus de Carenci, Hugo de Carenci, Robertus frater eius, Elbodo de Carenci"[292]. "…Robertus de Bethuna et Guilelmus filius eius…" signed the charter dated 14 Apr 1127 under which Guillaume Count of Flanders granted privileges to the town of Saint-Omer[293]. "...Willermi advocati de Bethun..." witnessed the charter dated 1135 under which Thierry Count of Flanders donated property to Marciennes abbey[294]. "Guilelmus jure hereditario Betuniensis advocatus" donated property to the church of Saint-Pry, with the consent of "Clementia uxore mea filioque meo Roberto", by charter dated to [1138][295]. The necrology of Béthune Saint-Barthélemy records the death "XIII Kal Apr" of "Willermus advocatus"[296]. The necrology of Choques records the death "XIII Kal Apr" of "Willermus Bethuniæ advocatus et Clementia uxor eius"[297]. m CLEMENCE de Cambrai, daughter of HUGUES [II] Châtelain de Cambrai, Sire d'Oisy et de Crèvecœur & his wife Hildiarde de Mons (-23 Jun after [1165]). "Hugo castellanus de Cambray et dominus de Oisy" donated property to Saint-Eloi on the day "Willermus Biturniensis advocatus" married "Clementiam filiam meam", in the presence of and confirmed by "filio meo Simone et filiabus Clementia, Matilde, Maria", undated witnessed by "Willermus Bituniensis advocatus..."[298]. "Guilelmus jure hereditario Betuniensis advocatus" donated property to the church of Saint-Pry, with the consent of "Clementia uxore mea filioque meo Roberto", by charter dated to [1138][299]. "Robertum Bethunensium advocatum et matrem meam Clemenciam" confirmed donations to the priory of Saint-Pry-lez-Béthune, with the consent of "uxore mea Adelide et sorore mea Maltide et Roberto filio meo", by charter dated to [1165][300]. "Clementiæ dominæ de Chokes, matri Roberti advocati de Bethunia" donated "terram…Mansus" to "abbas S. Johannis de Chokes", with the consent of "filio eius Roberto Betuniensi advocato et uxore eius Adelide et filiis eius Roberto, Baldewyno, Willermo et filia eius Clementia"[301]. The necrology of Béthune Saint-Barthélemy records the death "IX Kal Jul" of "Clementia mater Roberti Rufi"[302]. Guillaume [I] & his wife had [three] children