_Albert I WELF _______+
                                            | (1339 - 1383)        
                       _Eric I WELF ________|
                      | (1383 - 1427)       |
                      |                     |_Agnes I of WELF _____+
                      |                       (.... - 1410)        
 _Henry III WELF _____|
| (1416 - 1464)       |
|                     |                      _Otto I WELF _________+
|                     |                     | (1330 - 1394)        
|                     |_Elisabeth of WELF __|
|                                           |
|                                           |_Margaret of JÜLICH _
|                                                                  
|
|--Otto WELF 
|  (1458 - ....)
|                                            ______________________
|                                           |                      
|                      _____________________|
|                     |                     |
|                     |                     |______________________
|                     |                                            
|_Margaret of SAGAN __|
  (1415 - 1497)       |
                      |                      ______________________
                      |                     |                      
                      |_____________________|
                                            |
                                            |______________________