The remains of the Castle can be visited
Bucherbach Castle

In the Köllerbach valley near Püttlingen in the Saarbrücken regional association, the Bucherbach Castle Ruin, a lowland castle, is located. It is now a freely accessible testament to medieval architecture.
History+
Bucherbach Castle was first documented in 1326 when it was referred to as the “House in the Köllerbach Valley” in an inheritance contract of the Counts of Saarbrücken-Commercy. Count Johann I pledged the County of Saarbrücken but retained the castles of Saarbrücken and Bucherbach. In 1412, Count Philipp I of Nassau-Saarbrücken designated the castle as a dower house for his wife Elisabeth of Lorraine. In the mid-16th century, the complex underwent renovation under Philipp II. During the Thirty Years' War, the castle was devastated in 1627 by imperial troops under Count Kratz von Scharfenstein.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://www.wehrbauten.de/thread.php?threadid=2029
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: 49.3002, 6.8971