_Alfonso IX IVREA ____+
                                                   | (1171 - 1230)        
                       _Ferdinand III IVREA _______|
                      | (1199 - 1252) m 1219       |
                      |                            |_Berengaria of IVREA _+
                      |                              (1179 - 1246)        
 _Manuel IVREA _______|
| (1234 - 1283)       |
|                     |                             _Philip HOHENSTAUFEN _+
|                     |                            | (1177 - 1208)        
|                     |_Elisabeth of HOHENSTAUFEN _|
|                       (1204 - 1235) m 1219       |
|                                                  |_Irene ANGELOS _______+
|                                                    (1181 - 1181)        
|
|--John Manuel IVREA 
|  (1282 - 1348)
|                                                   _Thomas I SAVOY ______+
|                                                  | (1178 - 1232)        
|                      _Amadeus IV SAVOY __________|
|                     | (1197 - 1253) m 1244       |
|                     |                            |_Margaret of GENEVA __
|                     |                              (1179 - 1258)        
|_Beatrice of SAVOY __|
  (1250 - 1292)       |
                      |                             ______________________
                      |                            |                      
                      |_Cecilia of BAUX ___________|
                        (1230 - 1275) m 1244       |
                                                   |______________________