Wasserburg Gauangelloch, Medieval castle ruin in Leimen, Germany

Wasserburg Gauangelloch, also called Bettendorfsches Schloss, is a castle ruin at Schlossgarten 1 in the Gauangelloch district of Leimen. The site consists of a restored residential building and a castle garden; the former moats have long been filled in. The property remains in the possession of the Bettendorf noble family.

The castle was first documented in 1369 and suffered damage during the Thirty Years' War. Johann Philipp and Helena von Bettendorf rebuilt it in 1665 and established it as their family residence.

The former residential area now displays contemporary African sculptures and rotating exhibitions from artists across Africa. Visitors encounter modern artwork within the setting of the original stone rooms.

The grounds remain privately owned by the Bettendorf family, with the gallery located at Schlossgarten 1 in the Gauangelloch district. Visitors should check in advance whether access is available, as it is private property.

The chapel that Franz Ludwig von Bettendorf had built in 1824 from the demolished castle's stones kept the pointed-arch doorway of the old Gothic castle, into which three Bettendorf coat-of-arms stones were walled. One bears the inscription recording that Johann Philipp and Helena von Bettendorf rebuilt the castle in 1665. The chapel served as a place of worship until the end of the 19th century, then was converted into a barn.