Individual Details
Gentile I Orsini
( - )
Families
| Spouse | Constanza ( - ) |
| Child | Bertolo Orsini Count of Romagna (1225 - 1288) |
| Child | Orso Orsini ( - ) |
| Father | Matteo Rosso Orsini de Mugnano, Monterotondo, Galeria et San Angelo (1175 - 1246) |
| Mother | Perna Caetana ( - ) |
| Sibling | Pope Nicholas III (Giovanni Gaetani Orsini) (1216 - 1280) |