_Henry I WELF _____________+
                                                | (1267 - 1322) m 1282      
                         _Henry II WELF ________|
                        | (1296 - 1351)         |
                        |                       |_Agnes of WETTIN __________+
                        |                         (1264 - 1332) m 1282      
 _Philip WELF __________|
| (1332 - 1369)         |
|                       |                        _Philip of IBELIN _________+
|                       |                       | (1255 - 1318)             
|                       |_Helwig of IBELIN _____|
|                         (.... - 1347)         |
|                                               |_Maria Embriaco of GIBLET _
|                                                                           
|
|--Helvis of WELF 
|  (1353 - 1420)
|                                                _Walter II of DAMPIERRE ___+
|                                               | (1270 - ....)             
|                        _Eudes III DAMPIERRE __|
|                       | (.... - 1330)         |
|                       |                       |_Éschive of IBELIN _______+
|                       |                         (1270 - 1324)             
|_Helisia of DAMPIERRE _|
  (1334 - 1368)         |
                        |                        _Guy POITIERS-LUSIGNAN ____+
                        |                       | (1275 - 1308)             
                        |_Isabella of LUSIGNAN _|
                          (1302 - 1340)         |
                                                |_Eschiva of IBELIN ________+
                                                  (1253 - 1312)