The United Kingdom of the Netherlands (1815–1839) is the unofficial name used for the Kingdom of the Netherlands. This was after it was first made from part of the First French Empire and before the new Kingdom of Belgium split off from it in 1830. Most of it is still today the Kingdom of the Netherlands. It was made up of the former Dutch Republic to the north, the former Austrian Netherlands to the south, and the former Prince-Bishopric of Liège. The House of Orange-Nassau were the monarchs.