CHAPTER II. “THE NIGHT OF THE PAPACY”--CHARLEMAGNE TO OTTO THE GREAT

[b] O. J. REICHEL, _op. cit._

[c] H. STEBBING, _op. cit._

[d] THOMAS GREENWOOD, _Cathedra Petri_.

[e] J. J. I. DÖLLINGER, _Die Papst Fabel des Mittelalters_.

[f] Article on Pope “Joan,” in the _Encyclopædia Britannica_.

[g] H. H. MILMAN, _op. cit._

[h] CHARLES KINGSLEY, _The Roman and the Teuton_.

[i] B. PLATINA, _Vitæ Pontificum Romanorum_.

[j] C. FLEURY, _Histoire Ecclésiastique_.

[k] C. BARONIUS, _Annales Ecclesiastici_.

[l] EINHARD, _Vita Caroli Magni_.

[m] _Chronicles of Moissiac._

[n] MARIANUS SCOTUS, _Universal Chronicle from the Creation to the Year 1083_.

[o] SIGEBERT OF GEMBLOURS, _Chronique Universelle_.

[p] OTTO VON FREYSING, _Chronik_.

[q] STEPHEN DE BOURBON, _Chronicle_.

[r] MARTINUS POLONUS, _Chronicon de Summis Pontificibus_.

[s] LIUTPRAND, _Antapodosis_.