an Italian prelate, brother of Giovanni Francesco, was born at Urbino, Aug. 15, 1682, and died about 1750. He was cardinal of St. Clement chamberlain of the Church at Rome; bishop of Sabina, and arch-priest of the Basilica of St. Peter of the Vatican. We are indebted to him for a collection of the works of his uncle, pope Clement XI (Rome, 1724, 2 vols. fol.; Frankf. 1729): — and Monologium Grcecorum (Urbino, 1727), in Greek. and Latin. He also edited the Roman Pontifical (Brussels, 1739, 3 vols. 8vo). See Landon, Eccles. Dict. s.v.; Hoefer, Nouv. Biog. Gen., s.v.