_Christian III OLDENBURG _+
                                                 | (1245 - 1285)            
                            _John II OLDENBURG __|
                           | (1260 - 1314)       |
                           |                     |_Hedwig of WILDESHAUSEN __+
                           |                       (1233 - 1314)            
 _Conrad I OLDENBURG ______|
| (1300 - 1367)            |
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|                          |                     |                          
|                          |_Hedwig of DIEPHOTZ _|
|                            (1264 - 1307)       |
|                                                |__________________________
|                                                                           
|
|--Conrad II OLDENBURG 
|  (1331 - 1401)
|                                                 __________________________
|                                                |                          
|                           _____________________|
|                          |                     |
|                          |                     |__________________________
|                          |                                                
|_Ingeborg of SCHAUENBURG _|
  (1316 - 1350)            |
                           |                      __________________________
                           |                     |                          
                           |_____________________|
                                                 |
                                                 |__________________________