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                       |                                                   
 _Ulrich III of PFIRT _|
| (.... - 1324)        |
|                      |                             ______________________
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|                      |____________________________|
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|
|--Joanna of PFIRT 
|  (1300 - 1351)
|                                                    _Hugh III IVREA ______+
|                                                   | (1220 - 1266)        
|                       _Reginald IVREA ____________|
|                      | (.... - 1321)              |
|                      |                            |_Adelaide of ANDECHS _+
|                      |                              (.... - 1278)        
|_Joanna of IVREA _____|
  (1293 - 1349)        |
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                       |_Guillemette of MONTFAUCON _|
                         (1260 - 1317)              |
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