Ertheneburg, Medieval castle ruin in Schnakenbek, Germany
Ertheneburg is a castle ruin situated on a promontory overlooking the Elbe River in Schnakenbek. The remains include a semi-circular rampart and a moat approximately 4 meters deep that still outlines the former fortification.
The fortress was first documented in 1106 when Magnus of Saxony died there, marking the end of the Billung dynasty. This location held strategic importance as it overlooked a river crossing in a region of medieval power.
The name reflects the Slavic heritage confirmed by finds from past excavations at the site. These archaeological traces show how the region was shaped before German settlement arrived.
An information board at the entrance provides context for visitors exploring the ruins. The site is designed with barrier-free access, allowing people with mobility limitations to reach and view the remains.
The fortress guarded a river crossing where salt from Lüneburg was transported toward the Baltic Sea. This salt trade was an important economic activity that highlighted the value of controlling this position.
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