The castle was built around 1240 to monitor a nearby military road by the Counts of Veldenz, who appointed Eberhard von Lautern as their vassal.
The castle remained in the possession of the von Lautern family until 1432, who had used the name "von Montfort" since 1247.
In the 15th century, the inhabitants of the Ganerbenburg castle occasionally acted as robber barons. In 1456, the troops of Diether von Mainz, Archbishop of Mainz, and Elector Frederick I of the Palatinate conquered and destroyed the castle complex.
In 1480, Simon Boos von Waldeck received the castle as a hereditary fief, with permission to rebuild it. The Boos von Waldeck family, from the Waldeck Castle of the same name in the Hunsrück, had been co-commoners of Montfort Castle since the end of the 14th century.
Thanks to extensive renovation work, the castle complex today essentially reflects its post-destruction condition and provides a vivid picture of a medieval castle whose appearance has not been altered by later modernizations or reinforcements.
Remains of the ruins include the remains of the outer bailey, the moat, the outer bailey gatehouse, as well as the gate of the upper bailey, the rampart, the hull of the keep (accessible), the two residential towers up to the third floor, the foundation walls of the well house, the bower, and the stables.
The approximately 9 m high hull of the keep is secured at the top with a metal parapet and can be walked on as a viewing point. Access is via a 34-step metal spiral staircase within the residential and defensive tower and via the outer wall of the inner bailey to the keep. From here, one has a good view of the castle complex and the surrounding area.
Source: wikipedia.org