In the 13th century the hill was steepened into a real motte and a stone ciruclar wall was built. so it looked like this:
In the following centuries the castle grows (see drawing), until it looked like this in 1739:
But then, the war came in 1944 to Kessel and the retreating German army blew up the castle so it couldn't be used by the allied troops. It looked like this for years:
Various plans were made after the war for restoring the castle but, as always, the problem was money and it was decided to partially restoring the castle but then in a modern way; combining old with new into a multifunctional building.
It now look like this; maybe not to everybodies liking: