When Nicholas, the first of that name, was consecrated pope on the twenty-fourth of April, 858, no one—least of all the Emperor Louis II, by whose favor the former deacon succeeded in obtaining the election—could have foreseen the series of political and ecclesiastical upheavals, more like the thunderbolts of Jupiter than the benedictions of St. Peter, by which the new occupant of the Holy See won fame for himself, prestige for the papacy, and the dignity of being called “the Great.” Few popes hold a more dominating place in the history of the Catholic Church than Nicholas I. In the course of his nine-year pontificate he so fully succeeded in establishing his pre-eminence in the late Carolingian world over both prince and prelate that he found it possible to attain his ends by the mere rumbling of thunder, without using the ecclesiastical lightning-bolt in any but the most extreme cases. The mere threat of excommunication often proved sufficient to move mighty kings and not-so-mighty emperors into the path of righteousness.