_Érard OF BRIENNE II___+ | (.... - 1190) _John I BRIENNE _______| | (1170 - 1236) m 1224 | | |_Agnes OF MONTFAUCON ___+ | _Louis DEBRIENNE ____| | (1230 - 1297) | | | _Alfonso IX IVREA ______+ | | | (1171 - 1230) | |_Berengaria of IVREA __| | (1204 - 1237) m 1224 | | |_Berengaria of IVREA ___+ | (1179 - 1246) | |--Henry of BEAUMONT | (1285 - 1339) | _Richard I of BEAUMONT _ | | | _Raoul VI of BEAUMONT _| | | (1180 - 1239) m 1227 | | | |_Luce DE LAIGLE ________+ | | |_Agnes of BEAUMONT __| (1230 - 1301) | | ________________________ | | |_Agnes DE NORMANDIE ___| (1212 - ....) m 1227 | |________________________