To be privately owned
CastleBorken - Marbeck
Döring Castle

Haus Döring, an old "Burgmotte" (motte-and-bailey castle), represents the original form of all moated castles in Münsterland. Haus Döring was presumably built in the 12th century on a circular mound, which was surrounded by a double moat.
Image: http://www.wehrbauten.de/thread.php?threadid=709
Location: 51.8224, 6.8545