_Ferdinand III IVREA _+
                                            | (1199 - 1252)        
                       _Ferdinand IVREA ____|
                      | (1238 - 1264)       |
                      |                     |_Jeanne of DAMMARTIN _+
                      |                       (1220 - 1278)        
 _John I IVREA _______|
| (.... - 1302)       |
|                     |                      _Amaury of MONTFORT __+
|                     |                     | (1192 - 1241)        
|                     |_Laura of MONTFORT __|
|                                           |
|                                           |_Beatrix of VIENNOIS _
|                                                                  
|
|--John II IVREA 
|  (1302 - 1343)
|                                            ______________________
|                                           |                      
|                      _____________________|
|                     |                     |
|                     |                     |______________________
|                     |                                            
|_Ida of MEULAN ______|
                      |
                      |                      ______________________
                      |                     |                      
                      |_____________________|
                                            |
                                            |______________________