The Klosterkammer Hannover (Hanover Monastic Chamber), based in Hanover, is a special authority within the scope of the . It administers former ecclesiastical, mediatized property and maintains churches and convents. In addition, as a foundation body, it administers four independent foundations under public law. The Klosterkammer maintains and promotes church, social and educational projects. It is one of the oldest and most traditional state authorities in Lower Saxony, whose forerunner organisation was founded in the 16th century.