_Giangaetano ORSINI _+
                                                 | (1154 - 1232)       
                           _Matteo Rosso ORSINI _|
                          |                      |
                          |                      |_Oddo DI MONTICELLI _
                          |                                            
 _Matteo Rosso II ORSINI _|
| (.... - 1282)           |
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|                         |                      |                     
|                         |_Perna CAETANI _______|
|                                                |
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|                                                                      
|
|--Riccardo ORSINI 
|  (.... - 1309)
|                                                 _____________________
|                                                |                     
|                          ______________________|
|                         |                      |
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|                         |                                            
|_________________________|
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