_Ramon I of MONTCADA _+
                                                    | (1150 - 1190)        
                        _William Ramon II MONTCADA _|
                       | (1175 - 1228)              |
                       |                            |_Romona of TORNAMIRA _
                       |                                                   
 _Peter I of MONTCADA _|
|                      |
|                      |                             _Peter II BARCELONA __+
|                      |                            | (1178 - 1213)        
|                      |_Constance of ARAGON _______|
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|
|--William of MONTCADA 
|  (.... - 1308)
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|_Sibylla of ABARCA ___|
                       |
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