Coba jelasin Catatan dari Giacomo Antonelli dong

Michael Burleigh, 2006. Earthly Powers: The Clash of Religion and Politics in Europe, from the French Revolution to the Great War

David I Kertzer, 2004. Prisoner of the Vatican: The Popes' Secret Plot to Capture Rome from the New Italian State (Houghton Mifflin) ISBN 978-0-618-22442-5

Frank J. Coppa, 1990. Cardinal Giacomo Antonelli and Papal Politics in European Affairs ISBN 0-7914-0184-7 The first full-length biography, based on the documents of the Secret Vatican Archives, and not previously used family papers in the Archivio di Stato, Rome.

(Roger Aubert), "Antonelli, Giacomo," Dizionario biografico degli italiani'', vol. 3 (1961)