The present volume continues the work carried out by Germania Sacra on the collegiate foundations. Stendal Abbey, founded at the end of the 12th century and dissolved in the middle of the 12th century, is also the first religious institution in the Diocese of Halbersradt to be processed as part of the Germania Sacra project. Thus, this continues the efforts to research other communities apart from the Diocese of Naumburg in the new German federal states. The author, an expert on the church history of the Markgrafschaft of Brandenburg and thus also of the Altmark, proceeds according to the well-established pattern to describe the history, constitution, spiritual life. property and prosopography of the foundation.