Burg Helpenstein, Medieval castle ruins in Neuss, Germany

Burg Helpenstein is a castle site in Neuss comprising an earthen mound roughly 7 meters high with a base diameter of about 60 meters that narrows to roughly 40 meters at its peak. The remaining structure reveals how medieval builders shaped this defensive position.

The von Helpenstein family established their seat at this location in 1094, with Harpernus von Helpenstein first documented in writing in 1148. After the fortress suffered two destructions, the family built a replacement residence called Haus Helpenstein nearby in 1374.

The name Helpenstein is documented from 1094, when the family of that name is recorded here; Harpernus von Helpenstein appears in a charter of 1148. In local literature the mound is also called "Helpensteiner Motte" or "Hoffberg". The earthwork itself, cut by the Strategischer Bahndamm, is what remains for visitors to see.

The surviving mound stands near Grafenstraße in Helpenstein, but the Strategischen Bahndamm embankment cuts straight through the castle hill, so the earthwork is only partly preserved. Approach on foot and watch for uneven ground on the slope.

This motte-type fortress experienced two complete destructions throughout its history, which changed its character significantly. These remnants show how medieval fortifications were sometimes overcome rather than rebuilt in updated form.