_Bivin BIVINID ___________
                                            | (0810 - 0863)            
                       _Richard BIVINID ____|
                      | (0858 - 0921) m 0888|
                      |                     |_Richildis of BOSONID ____+
                      |                       (.... - 0883)            
 _Rudolph BIVINID ____|
| (0890 - 0935) m 0921|
|                     |                      _Conrad II WELF __________+
|                     |                     | (.... - 0876)            
|                     |_Adelaide of WELF ___|
|                       (0865 - ....) m 0888|
|                                           |_Waldrada of UDALRICHING _+
|                                             (0801 - ....)            
|
|--Louis BIVINID 
|  
|                                            _Robert IV ROBERTIAN _____+
|                                           | (0830 - 0866)            
|                      _Robert I ROBERTIAN _|
|                     | (0866 - 0923)       |
|                     |                     |_Adelaide of ETICHO ______+
|                     |                       (0820 - 0866)            
|_Emma of ROBERTIAN __|
  (.... - 0935) m 0921|
                      |                      __________________________
                      |                     |                          
                      |_Aélis of MAINE ____|
                        (0868 - 0894)       |
                                            |__________________________