Röttgen Castle (Köln)

The castle was built as a knight's seat from the 9th to the 13th century and demolished in 1790. It was not rebuilt in the Romantic style until 1866. The associated area was enclosed with a wall. In 1909, the Eau de Cologne manufacturer Peter Mülhens bought Röttgen Castle. There, in 1924, he founded the Röttgen Thoroughbred Stud. During the Second World War, the castle was severely damaged by bombs. From 1945 to 1953, it served as the seat of the British military administration. In its rooms, Chancellor Konrad Adenauer negotiated the Germany Treaty with the victorious powers. In 1953, the estate was returned to the Mülhens family. After the death of Maria Mehl-Mülhens in 1985, the property passed to the Mehl-Mülhens Foundation.

During the planning of the Cologne airport loop, the foundation sued against the route. As part of an out-of-court settlement, the Schloss Röttgen Tunnel of the route was extended to its current length.

The castle and the forest are not publicly accessible.