The remains of the Castle can be visited
Obere Sachsenburg Castle

The castle ruin Obere Sachsenburg, a spur castle, stands at an elevation of approximately 253 meters above the village of Sachsenburg, a district of Oldisleben. It once secured access to the Thuringian Basin. Today, the keep and the ruined palace remain.
History+
The origins of Obere Sachsenburg date back to the 7th and 8th centuries, as archaeological finds indicate a Franconian predecessor. The current castle was likely built in the second half of the 13th century under Count Siegfried von Anhalt, who had occupied the Palatinate of Saxony. Although the Treaty of Weißenfels in 1249 mentioned the demolition of Burg Saxinberg, it is unclear whether this actually occurred, as the castle was successfully defended against Adolf I of Nassau in 1287.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: Roland Neubert, Halle (Saale)
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 51.2968, 11.1620