Like other dioceses close to
Rome, Frascati became a bishopric of choice for Cardinals of powerful papal families during the 17th century; a period known for its unabashed
nepotism. Frascati Bishops of that era were significantly intertwined: •
Odoardo Farnese (1624–1626) – uncle of
Odoardo Farnese, Duke of Parma against whom the
Barberini fought the
First War of Castro. •
Bonifazio Bevilacqua Aldobrandini (1626–1627) - adopted
"nephew" of
Aldobrandini family Pope Clement VIII whose grand-niece
Olimpia Aldobrandini married
Camillo Pamphili, nephew of
Pope Innocent X. •
Marcello Lante della Rovere (1629–1639) – previous
Bishop of Palestrina (the comune owned by the
Barberini) uncle of
Ippolito Lante Montefeltro della Rovere who was a close friend and counsel to
Maffeo Barberini. •
Giulio Cesare Sacchetti (1652–1655) – twice nominated for the papacy by Antonio Barberini. •
Antonio Barberini (1655–1661) – nephew of
Pope Urban VIII, brother of Taddeo Barberini (
Prince of Palestrina), exiled by
Pope Innocent X, later helped engineer the marriage of his nephew Don Maffeo Barberini to the grand-niece of Pope Innocent X. •
Girolamo Colonna (1661–1666) – brother of
Anna Colonna (wife of
Taddeo Barberini, nephew of Pope Urban VIII), uncle of Don Maffeo Barberini and brother-in-law of Antonio Barberini. •
Carlo Rossetti (1676–1680) –
prelate to Pope Urban VIII and Antonio Barberini, supporter of Giulio Cesare Sacchetti ==Bishops==