Its name comes from the first Italian King. Its portrait still  commands the wall near the big fireplace. It is renowned thanks to its frescos, its exclusive beauty and its antique ceiling going back to the XIII century. This is one of the best preserved ceiling. King Arduin lounge is the biggest hall of the Castle. It is ideal for conferences and for any other event that must remain impressive and unforgettable. It can host up to 150 guests and it is equipped with exclusive furniture and the best technologies.