_Berthold I ZÄHRINGEN ________
                                                           | (1000 - 1078)                 
                        _Berthold II ZÄHRINGEN ___________|
                       | (1050 - 1111)                     |
                       |                                   |_Richwara of KÄRNTEN _________
                       |                                     (1038 - 1070)                 
 _Conrad I ZÄHRINGEN _|
| (1090 - 1151)        |
|                      |                                    _Rudolf of RHEINFELDEN ________
|                      |                                   | (1025 - 1080)                 
|                      |_Agnes of RHEINFELDEN _____________|
|                        (1065 - 1111)                     |
|                                                          |_Adelaide of SAVOY ____________+
|                                                            (1050 - 1079)                 
|
|--Berthold IV ZÄHRINGEN 
|  (1125 - 1186)
|                                                           _Albert III NAMUR _____________+
|                                                          | (1027 - 1102)                 
|                       _Godfrey I NAMUR __________________|
|                      | (1068 - 1139) m 1109              |
|                      |                                   |_Ida of BILLUNG _______________+
|                      |                                                                   
|_Clementia of NAMUR __|
  (.... - 1158)        |
                       |                                    _Conrad I ARDENNES-LUXEMBOURG _+
                       |                                   | (1040 - 1086) m 1075          
                       |_Ermesinde of ARDENNES-LUXEMBOURG _|
                         (1075 - 1143) m 1109              |
                                                           |_Clementia of POITIERS ________+
                                                             (1050 - 1141) m 1075