[1] He went to Rome during the pontificate of Pope Urban VIII and was appointed vice-legate in Bologna and governor of Fano and Ascoli Piceno.

Contemporary John Bargrave recounts that while he was governor, François, Duke of Créquy and ambassador of France, visited Rome with his wife.

A grave misunderstanding led to the ambassador's wife's coach being attacked and fired upon by papal troops from the Corsican Guard.

[3] Imperiali died on 21 September 1673 in Rome and was buried in the chapel of Saint Thomas of Villanova in the Basilica di Sant'Agostino.

[1] A grandson of his brother, Giuseppe Renato Imperiali (born 1651), who had lived in his household since 1662, would be named cardinal in 1690.