Adaldag

Adaldag was of noble birth, a relation and pupil of Adalward, Bishop of Verden, and became canon of Hildesheim.

[1] On the death of Archbishop Unni of Hamburg-Bremen in 936, Otto nominated him to the vacant see,[2] and granted him all the rights of a count.

None of the early incumbents of the see ruled for so long, and none did so much for the diocese, though his success was partly the fruit of his predecessors’ labors and of peculiarly favorable circumstances.

Under Adaldag the metropolitan see obtained its first suffragans, by the erection of the bishoprics of Ribe, Schleswig, and Århus;[3] and that of the Slavic territories of Aldenburg (today's Oldenburg in Holstein) was also placed under Hamburg.

He gained many privileges for his see, in jurisdiction, possession of land, and market rights, by his close relations with the emperors, especially Otto I.