_Berthold II ZÄHRINGEN ___________+
                                                 | (1050 - 1111)                     
                           _Conrad I ZÄHRINGEN _|
                          | (1090 - 1151)        |
                          |                      |_Agnes of RHEINFELDEN _____________+
                          |                        (1065 - 1111)                     
 _Berthold IV ZÄHRINGEN _|
| (1125 - 1186)           |
|                         |                       _Godfrey I NAMUR __________________+
|                         |                      | (1068 - 1139) m 1109              
|                         |_Clementia of NAMUR __|
|                           (.... - 1158)        |
|                                                |_Ermesinde of ARDENNES-LUXEMBOURG _+
|                                                  (1075 - 1143) m 1109              
|
|--Berthold V ZÄHRINGEN 
|  (1160 - 1217)
|                                                 ___________________________________
|                                                |                                   
|                          ______________________|
|                         |                      |
|                         |                      |___________________________________
|                         |                                                          
|_Heilwig of FROHBURG ____|
                          |
                          |                       ___________________________________
                          |                      |                                   
                          |______________________|
                                                 |
                                                 |___________________________________