In the olden times the Germanic Empire was in reality a league of barons, counts, and dukes, who, through seven of their number, elected the emperor.
These electors were the Archbishops of Mayence (who was also Primate and Archchancellor of the Empire), Trèves, and Cologne; the Palatine of the Rhine, Arch-Steward of the Empire; the Margrave of Brandenburg, Arch-Chamberlain; the Duke of Saxony, Arch-Marshal; and the King of Bohemia, Arch-Cupbearer.
In no part of the Christian world did the clergy possess greater endowments of power and wealth than did those of the Rhine valley.
The Archbishop of Cologne was the Archchancellor of the Empire, the second in rank of the electoral princes, and ruler of an immense territory extending from Cologne to Aix-la-Chapelle; while the Archbishops of Mayence and Trèves played the rôle of patriarchs, and were frequently more powerful even than the Popes.[{33}]
All the bishops, indeed, were invested with rights both spiritual and temporal, those of the churchman and those of the grand seigneur, which they exercised to the utmost throughout their dioceses.
St. Boniface was sent on his mission to Germany in 715, having credentials and instructions from Pope Gregory II. He was accompanied by a large following of monks versed in the art of building, and of lay brethren who were also architects. This we learn from the letters of Pope Gregory and the "Life of St. Boniface," so the fact is established that church-building in Germany, if not actually begun by St. Boniface, was at least healthily and enthusiastically stimulated by him.
Among the bishoprics founded by Boniface were those of Cologne, Worms, and Speyer, and it may be remarked that all of these cities have ample evidences of the round-arched style which came prior to the Gothic, which followed later. If anything at all is proved with regard to the distinct type known as Rhenish architecture, it is that the Lombard builders preceded by a long time the Gothic builders.
Charlemagne's first efforts after subduing[{34}] the heathen Saxons was to encourage their conversion to Christianity. For this purpose he created many bishoprics, one being at Paderborn, in 795, a favourite place of residence with the emperor.
Great dignity was enjoyed by the Bishop of Paderborn, certain rights of his extending so far as the Councils of Utrecht, Liège, and Münster. The abbess of the monastery at Essen, near Düsseldorf, was under his rule; and the Counts of Oldenberg and the Dukes of Clèves owed to him a certain allegiance; while certain rights were granted him by the cities of Cologne, Verdun, Aix-la-Chapelle, and others.
These dignities endured, in part, until the aftermath of the French Revolution, which was the real cause of the disrupture of many Charlemagnian traditions.