_John of ARDERNE _____+
                                               | (1191 - 1238) m 1220 
                         _Walkelin of ARDERNE _|
                        | (1215 - 1265) m 1240 |
                        |                      |_Margaret of ALDFORD _+
                        |                        (1195 - 1235) m 1220 
 _Peter of ARDERNE _____|
| (1241 - 1292)         |
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|                       |                      |                      
|                       |_Agnes of ORREBY _____|
|                         (1220 - 1300) m 1240 |
|                                              |______________________
|                                                                     
|
|--John of ARDERNE 
|  (1266 - 1308)
|                                               ______________________
|                                              |                      
|                        ______________________|
|                       |                      |
|                       |                      |______________________
|                       |                                             
|_Margery of ELLEFORDE _|
  (1250 - 1300)         |
                        |                       ______________________
                        |                      |                      
                        |______________________|
                                               |
                                               |______________________