Bad Popes.
Dorset Press, 1969. Second printing. 0880291168  310 pages. 
Volume is bound in quarter black cloth and light brown paper-covered boards, with stamped gilt lettering to spine. Book is in excellent condition. Dust jacket displays light shelfwear. 
"...explores the lives, both private and public, of John XII, the dissolute Roman prince, Benedict IX, who subjected the Papacy to its greatest indignity; Boniface VIII, who carried the temporal claims of popes to supreme heights and was destroyed by them; Urban VI, the wild man from Naples, whose grotesque savageries widened and maintained the scandalous gap of the Great Schism; Alexander VI, who brought to the See of Peter the intrigues of the Borgia; Leo x, civilized, urbane, indifferent to the pleas of Augustinian preacher from the North, Martin Luther; and Clement VII, the unskillful fox, who fell, tricked by the Holy Roman Emperor, bringing down Rome itself." (Jacket blurb)