A great Catholic ecclesiastic, born near Naples, priest of the Congregation of the Oratory under its founder, and ultimately Superior; cardinal and librarian of the Vatican; his great work, "Annales Ecclesiastici," being a history of the first 12 centuries of the Church, written to prove that the Church of Rome was identical with the Church of the 1st century, a work of immense research that occupied him 30 years; failed of the popehood from the intrigues of the Spaniards, whose political schemes he had frustrated (1538-1607).