_Orso ORSINI ________+
                                             | (1127 - 1207)       
                        _Giangaetano ORSINI _|
                       | (1154 - 1232)       |
                       |                     |_Gaetana DI GAETA ___
                       |                                           
 _Matteo Rosso ORSINI _|
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|                      |_Oddo DI MONTICELLI _|
|                                            |
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|                                                                  
|
|--Matteo Rosso II ORSINI 
|  (.... - 1282)
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|                                            |                     
|                       _____________________|
|                      |                     |
|                      |                     |_____________________
|                      |                                           
|_Perna CAETANI _______|
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