Adalbold II of Utrecht

Adalbald II, also Adalbold, († November 27, 1026 ) was bishop of Utrecht from 1010 to 1026. He was the son of Dietrich, who, so probably was only after Adalbalds birth, Bishop of Metz 965, and probably a member of the family of Ezzonen.

He received his education partly from Notker, Bishop of Liege. He was a canon in Laubach (Hesse), where he apparently also taught. Emperor Henry II took him to his court, and made him in 1010 to the Bishop of Utrecht. Adalbold is considered the main founder of the territorial power of the Diocese: 1024 he acquired the county Drenthe, two years later the county Teisterbant.

He had his diocese not only against the incursions of the Normans to defend, but also against the attacks of neighboring nobleman. It did not succeed in the possession of Merwede ( Mircvidu ) against the claims of Dietrich III. to argue from Holland.

Dietrich III. had let in Vlaardingen build a fortress, with whose help he - rose inch - without permission of the emperor. Merchants Tiel alerted the emperor also about violent attacks of Dietrich's people against them. The Emperor decided to quit Dietrich's rule and transferred the land to the Bishop of Utrecht. A large imperial army moved against the new fortress. In the ensuing Battle of Vlaardingen on July 29, 1018 Dietrich wore III. However, a very important victory, the result of which he not only retained his possession, but also permission was given, continue to collect customs.

Within his diocese Adalbold promoted the construction of churches and monasteries; his greatest achievement here was the completion of the St. Martin's Cathedral in Utrecht. He left the monastery of Tiel rebuild, completed the construction of Hohorst in Leusden, which his predecessor had begun Ansfried. Here he appointed Poppo of Stavelot abbot and thus introduced the Cluniac reform into his diocese.

Adalbold is also known as author. Welfare in the period from 1014 to 1024, he wrote the Vita Heinrici II imperatoris He wrote a mathematical treatise on the quadrature of the circle, which he dedicated to Pope Sylvester II, who was himself a well-known mathematician. In addition, a philosophical account to a passage from Boethius remained. However, the discussion Quemadmodum indubitanter Musicæ consonantiæ judicari possint seems to only be attributed to uncertainty over the evidence to him.