Gregorio II Boncompagni (7 July 1642 – 1 January 1707) was an Italian nobleman and the 5th Duke of Sora.
Ippolita (1663–1733), Princess of Piombino (1700–1733), married Gregorio II Boncompagni and had issue
San Gregorio Matese | San Gregorio | Gregorio Fernández | Gregorio Panzani | San Gregorio Magno | Juan Gregorio de las Heras | Gregorio Vargas | Gregorio Marañón | Gregorio Hernandez Rios 'El Goyo' | Gregorio Carafa | Casino di Villa Boncompagni Ludovisi | San Gregorio d'Ippona | Ryan Gregorio | Manuel Gregorio Acosta | Gregorio Reyes | Gregorio Petrocchini | Gregorio Perfecto High School | Gregorio Perfecto | Gregorio Paz | Gregorio Luperón International Airport | Gregorio Luperón | Gregório Lopes | Gregorio II Boncompagni | Gregorio Di Leo | Colegio de San Gregorio | BRP ''Gregorio del Pilar'' (PF-15) |