Arrigoni, Pompeio an Italian cardinal, was born in Rome in 1552. At the close of his course of studies at Bologna and Padua he was made doctor of laws, and a little later the king of Spain chose him for his representative at Rome. He was appointed consistorial advocate by Gregory XIII, and auditor of the suits of the apostolic court by Gregory XIV. At last Clement-VIII made himr cardinal. He died at Naples, April 4,1616. We have from him a Latin discourse delivered at Rome, in the consistory, upon the Canonization of
St. Diego of Alcala (Rome, 1588). Other works are attributed to him which have been contested -by Mazzuchelli. See Hoefer, Nouv. Biog. Generale, s.v.