Work contains history of popes from Saint Peter, the first Bishop of Rome to Pius IX, who was elected in 1846 "[while the preceding work was passing through the press, intelligence was received of the death of Gregory XVI ...]" vol. 2, p. 432. "This work opens to our view a clear exposition of the public history and private practices of the men, who, from the position of simple pastors of a singe church, advanced their authority, step by step, until they became not only the ecclesiastical, but in fact the temporal lords of Christendom"--Translator's Preface, p.[3].