Giacomo Colonna, Prince of Palestrina (1270-1329), more commonly known by his bynames Sciarrillo or Sciarra, was a member of the powerful Colonna family. He is most famous for attacking Pope Boniface VIII and for crowning Louis IV of Germany as Holy Roman Emperor.
Giacomo Sciarra Colonna | |
|---|---|
| Prince of Palestrina | |
 Posthumous portrait by Cristofano dell'altissimo de Colonna | |
| Tenure | ?-1328 |
| Predecessor | None |
| Successor | None |
| Born | 1270 Rome, Papal States |
| Died | 10 September 1328 Venice, Republic of Venice |
| Father | Giovanni Colonna, Maquis of Ancona |