prince william vi (son of prince william v of orange), returned to the netherlands in 1813, after napoleon fell from power, and restored the palace to its original owners. after his investiture as king william i of the netherlands, however, amsterdam was made the official capital of the united kingdom of the netherlands (the seats of government being brussels and the hague). the new king realised the importance of having a palace in the capital, and the town hall again became a royal palace.