A friend of Charlemagne, in 791 Hildebold was made the archchaplain and chancellor of the Imperial Council.
At the request of Charlemagne, Pope Adrian I released Hildebold from the traditional episcopal requirement of residing in one's see.
The dioceses of Utrecht, Liège, Münster, Minden, Osnabrück, and Bremen were made suffragan.
[1] After a long day hunting and in need of a rest, Charlemagne stopped at a small chapel.
Believing Charlemagne was only a hunter and not the king, Hildebold rejected the offer and asked only for a small piece of leather from the next deer killed so he could bind his old prayer book.