Hardehausen Abbey

Construction was completed with the dedication of the church in 1165 (860 years ago) (1165).

Also, the nunnery at Wilhelmshausen (Walshausen) which Hardehausen had acquired in 1293 and subsequently emptied, was re-established in 1320 with a new community of monks.

During the Thirty Years' War the abbey was looted and destroyed.

Hardehausen was briefly re-founded as a Cistercian monastery in 1927, but the new community was brought to an end by an order of dissolution issued by the National Socialist government in 1938, when the buildings and grounds were sold to the Henschel company from Kassel, from whom they were acquired by the Verein für katholische Arbeiterkolonien ("Union for Catholic Workers' Colonies").

At this period an external work party from Buchenwald concentration camp, consisting of 30 prisoners, were deployed for forced labour in Hardehausen.