Adelbrik Adelen was the third potestaat (magistrate governor) of Friesland

Friesland

Friesland is a province in the north of the Netherlands and part of the ancient region of Frisia.Until the end of 1996, the province bore Friesland as its official name. In 1997 this Dutch name lost its official status to the Frisian Fryslân...

 a province of the Netherlands.

He was potestaat during the government of Lorraine

Lorraine (province)

The Duchy of Upper Lorraine was an historical duchy roughly corresponding with the present-day northeastern Lorraine region of France, including parts of modern Luxembourg and Germany. The main cities were Metz, Verdun, and the historic capital Nancy....

, and defeated the Vikings. In Kollum

Kollum

Kollum is a village in Kollumerland c.a. in the province Friesland of the Netherlands and has a population of around 5613 . There is a restored windmill, Tochmaland in the village.-References:...

 he won a victory over a Swedish duke. There is a source that indicates that he is a brother or a cousin of the Utrecht Bishop Frederik, who came from the same Friesian village of Sexbierum.

He succeeded Taco Ludigman

Taco Ludigman

Taco Ludigman was the second potestaat of Friesland.Taco or Focko Ludigman was potestaat of Friesland in the final part of the reign of Louis the Pious. He succeeded Magnus Forteman as potestaat...

, and in turn was succeeded by Hessel Hermana

Hessel Hermana

Rodulf Haraldsson , sometimes Rudolf, from Old Norse Hróðulfr, was a Viking leader who raided the British Isles, West Francia, Frisia, and Lotharingia in the 860s and 870s. He was a son of Harald the Younger and thus a nephew of Rorik of Dorestad, and a relative of both Harald Klak and Godfrid...

.

The family emblem of Adelen is a Friese eagle half left, and right on a blue field up with a key above. To the upper left and right is a 5-pointed star.