_William I DUNKELD _________+
                                                    | (1142 - 1214) m 1186       
                            _Alexander II DUNKELD __|
                           | (1198 - 1249) m 1239   |
                           |                        |_Ermengard of BEAUMONT _____+
                           |                          (1170 - 1232) m 1186       
 _Alexander III DUNKELD ___|
| (1241 - 1285) m 1261     |
|                          |                         ____________________________
|                          |                        |                            
|                          |_Marie of COUCY ________|
|                            (1218 - 1285) m 1239   |
|                                                   |____________________________
|                                                                                
|
|--Margaret of DUNKELD 
|  (1260 - 1283)
|                                                    _John Lackland PLANTAGENET _+
|                                                   | (1166 - 1216) m 1200       
|                           _Henry III PLANTAGENET _|
|                          | (1207 - 1272) m 1236   |
|                          |                        |_Isabella TAILLEFER ________+
|                          |                          (1186 - 1246) m 1200       
|_Margaret of PLANTAGENET _|
  (1240 - 1274) m 1261     |
                           |                         _Ramon Berenguer IV ARAGON _+
                           |                        | (1198 - 1245)              
                           |_Eleanor of BARCELONA __|
                             (1223 - 1291) m 1236   |
                                                    |_Beatrice of SAVOY _________+
                                                      (1198 - 1267)