'Soleva Roma, che 'l buon mondo feo Duo Soli aver, che l' una e l' altra strada Facean vedere, e del mondo e di Deo. L' un l' altro ha spento, ed è giunta la spada Col pastorale: e l' un coll altro insieme Per viva forzu mal convien che vada.' [129] See especially Peter de Andlo (_De Imperio Romano_); Ralph Colonna (_De translatione Imperii Romani_); Dante (_De Monarchia_); Engelbert (_De Ortu et Fine Imperii Romani_); Marsilius Patavinus (_De translatione Imperii Romani_); Æneas Sylvius Piccolomini (_De Ortu et Authoritate Imperii Romani_); Zoannetus (_De Imperio Romano atque ejus Iurisdictione_); and the writers in Schardius's _Sylloge_, and in Goldast's Collection of Tracts, entitled _Monarchia Imperii_. [130] Letter of Lewis II to Basil the Macedonian, in _Chron. Salernit._ in Mur. _S. R. I._; also given by Baronius, _Ann. Eccl._ ad ann. 871. [131] 'Ad summum dignitatis pervenisti: Vicarius es Christi.'--Wippo, _Vita Chuonradi_ (_ap._ Pertz), c. 3. [132] Letter in Radewic, _ap._ Murat, _S. R. I._ [133] Lewis IV is styled in one of his proclamations, 'Gentis humanæ, orbis Christiani custos, urbi et orbi a Deo electus præesse.'--Pfeffinger, _Vitriarius Illustratus_. [134] In a document issued by the Diet of Speyer (A.D. 1529) the Emperor is called 'Oberst, Vogt, und Haupt der Christenheit.' Hieronymus Balbus, writing about the same time, puts the question whether all Christians are subject to the Emperor in temporal things, as they are to the Pope in spiritual, and answers it by saying, 'Cum ambo ex eodem fonte perfluxerint et eadem semita incedant, de utroque idem puto sentiendum.' [135] 'Non magis ad Papam depositio seu remotio pertinet quam ad quoslibet regum prælatos, qui reges suos prout assolent, consecrant et inungunt.'--_Letter of Frederick II_ (lib. i. c. 3). [136] _Liber Ceremonialis Romanus_, lib. i. sect. 5; with which compare the _Coronatio Romana_ of Henry VII, in Pertz, and Muratori's Dissertation in vol. i. of the _Antiquitates Italiæ Medii Ævi_. [137] See Goldast, _Collection of Imperial Constitutions_; and Moser, _Römische Kayser_. [138] The abbot Engelbert (_De Ortu et Fine Imperii Romani_) quotes Origen and Jerome to this effect, and proceeds himself to explain, from 2 Thess. ii., how the falling away will precede the coming of Antichrist. There will be a triple 'discessio,' of the kingdoms of the earth from the Roman Empire, of the Church from the Apostolic See, of the faithful from the faith. Of these, the first causes the second; the temporal sword to punish heretics and schismatics being no longer ready to work the will of the rulers of the Church.