Coba jelasin Nota dari Paus Leo V dalam bahasa melayu dong

DeCormenin, Louis Marie; Gihon, James L., A Complete History of the Popes of Rome, from Saint Peter, the First Bishop to Pius the Ninth (1857)

Mann, Horace K., The Lives of the Popes in the Early Middle Ages, Vol. IV: Popes in the Days of Feudal Anarchy, 891-999 (1910)

Norwich, John Julius, The Popes: A History (2011)