_Christian I OLDENBURG __+
                                                      | (1110 - 1167)           
                             _Maurice I OLDENBURG ____|
                            | (1145 - 1211)           |
                            |                         |_Kunigunde of VERSFLETH _
                            |                           (1125 - 1198)           
 _Christian II OLDENBURG ___|
| (1178 - 1233)             |
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|                           |_Salome of AHR-WICKRATH _|
|                             (1150 - 1215)           |
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|                                                                               
|
|--John I OLDENBURG 
|  (1204 - 1270)
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|                           |                                                   
|_Agnes of ALTENA-ISENBURG _|
  (1166 - 1217)             |
                            |                          _________________________
                            |                         |                         
                            |_________________________|
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