Heiligenburg Castle

Heiligenburg Castle is a fortress ruin on a 393-meter (1,290-foot) basalt hill in Gensungen, with preserved towers and gate structures rising above the landscape. The remains display typical medieval defensive features and are encircled by walking paths that provide access to the grounds.

Archbishop Konrad I of Mainz built the fortress between 1180 and 1186 to assert control against Landgrave Ludwig III of Hesse in the region. The structure played a key role in medieval power struggles between church and secular authority.

The name refers to the sacred nature of the hilltop, which drew pilgrims during medieval times. Visitors today can sense how religious importance and military fortification merged at this location.

The climb to the hilltop is moderately steep and takes about 20 to 30 minutes from the base, with the path winding through forest. Good footwear is recommended since the ground can be slippery, especially after rain.

The hilltop is an ancient volcanic neck from the Miocene period, with only the basalt core remaining after millions of years of erosion. A medieval fortress now sits atop this prehistoric geological foundation, merging two vastly different time periods.

Location: Gensungen

GPS coordinates: 51.13280,9.45833

Latest update: December 8, 2025 21:04