Burg Röthgen, Medieval castle in Eschweiler, Germany

Burg Röthgen is a medieval fortification in Eschweiler consisting of a two-winged main structure separated by a moat from a three-winged outer bailey. Remnants of brick fortifications are still visible and form the outer defensive lines of the complex.

The castle's founding date is not documented. A 1348 charter names Edmund von Röthgen (Edmuntz van me Roitgen), and 17th-century records describe the site as the seat of the lords of Engelsdorf, called Merötgen, resident there since the 13th century. It was built to protect Jülich holdings in the wooded Voreifel and held as a Jülich fief. A weather vane dated 1514 suggests Wilhelm von der Horst zu Hurt rebuilt the complex that year.

The structure displays Gothic architectural elements in its core and preserves medieval construction techniques through its rubble stone design. Visitors can observe how the stones are layered and worked, which is typical of fortifications built during that period.

The outer bailey currently houses an active riding school, while the main castle section serves as private residential quarters. Visitors should note that these uses may limit access to certain areas.

Archaeological studies disproved local theories about an underground passage connecting this site to the nearby Nothberger Burg. The geographical conditions make such a connection physically impossible.