A lot of repairs were made, but the castle is still undergoing restoration.

The castle underwent further restoration in the late 19th century.

Over the past few years, the castle has once again been undergoing more thorough reconstruction.

In 1375 the castle underwent a siege by the Gugler.

It was at this time that the castle underwent extensive reconstruction.

The castle underwent a complete reconstruction between 1950 and 1955.

The castle underwent major restoration from 1948 to 1959.

Between 1529 and 1559 the castle underwent an upgrade by French engineers.

Since the 1990s the castle underwent major reconstructions, which have been completed in 2008.

In the second half of the century, the castle underwent some restoration work.