The castle of Ciergnon was built in 1842 by architect Ballat for King Leopold II and it is situated in the village Houyet. The castle is used as weekend home by the Royal family although they are not often there. King Leopold III lived in this castle after he resigned the crown with his second wife Princess van Réthy. Since her passing in 2002 the castle stands mostly empty. The previous King and Queen often visited the Princess. The current King and Queen will be mostly remembered because they protested against a touristic path that runs along their domain and that way the common people could maybe see them sitting on her deck. You can't see the Royal family relaxing but you can view the castle from the valley. Of course the domain is strictly private.