Against the opposition of the current owner, the foundation is lobbying for national monument status, which would safeguard it.
In the summer of 2011 the temporary historic monument status had expired since the local authorities failed to produce the necessary documents.
Land that has been given monument status may no longer be used for any purpose or in any way that would change its character.
Today, the remains of castle have scheduled monument status and a grade I listed building.
Due to its monument status, much of its rich history has been preserved.
It was saved from this fate by obtaining monument status in 1990.
Today only the unfinished earthworks remain of the castle, which have scheduled monument status.
It then passed through various owners, and, in the process being given industrial monument status, and having facilities built for visitors including a museum.
But some cattlemen fear that monument status will prevent them from running their ranches as they see fit.
The gravesite was granted protected cultural monument status in 1923.
