↑ “Borgia”. The American Heritage Dictionary of the English Language (ấn bản 5). Boston: Houghton Mifflin Harcourt. 2014. Truy cập ngày 14 tháng 5 năm 2019.
↑ Johann Burchard, Pope Alexander VI and His Court: Extracts from the Latin Diary of Johannes Burchardus, 1921, F.L. Glaser, ed., New York, N.L. Brown, pp. 154-155.
↑ In 5 volumes totaling nearly 3 thousand pages, and including many unpublished documents,* Msgr. de Roo labors to defend his thesis that pope Alexander, far from being a monster of vice (as he has so often been portrayed) was, on the contrary, "a man of good moral character and an excellent Pope." Material, vol. 1, preface, xi.
"[Peter de Roo] must have devoted to his task many years of research among the Vatican archives and elsewhere. As he tells us himself in a characteristic passage: "We continued our search after facts and proofs from country to country, and spared neither labour nor money in order to thoroughly investigate who was Alexander VI., of what he had been accused, and especially what he had done." Whether all this toil has been profitably expended is a matter upon which opinions are likely to differ. But we must in any case do Mgr. de Roo the justice of admitting that he has succeeded in compiling from original and often unpublished sources a much more copious record of the pontiff's creditable activities than has ever been presented to the world before." -- Pope Alexander VI and His Latest Biographer, in The Month, April, 1925, Volume 145, p. 289.
↑ Mallett, M. The Borgias (1969) Granada edition. 1981. p. 9.
↑ “Francis Borgia (1510–1572)”. The Thames & Hudson Dictionary of the Italian Renaissance. London: Thames & Hudson. 2006.
↑ Najemy, John (tháng 9 năm 2013). Machiavelli and Cesare Borgia: A Reconsideration of Chapter 7 of The Prince . Review of politics. tr. 539–556.
↑ Parypinski, Joanna (13 tháng 7 năm 2013). “Book Review: Summer of Night”. joannaparypinski.com. Truy cập ngày 17 tháng 4 năm 2021. When one of the boys uncovers the shrouded history of the Borgia Bell—an ancient relic connected with murder and said to be in the closed-off belfry of Old Central—the disturbances in town focus their attention on him.
↑ Donahue, Deirdre (24 tháng 3 năm 2011). “Back in time and in crime with Borgias”. Life.
↑ Snider, Mike. “'Assassin' is back with 'Brotherhood'”. USA Today.
