The European Monarchy is a term used to refer to the various royal families that have ruled over European countries throughout history. Monaco, a small country located on the French Riviera, is ruled by the House of Grimaldi, which has been in power since 1297. BELGIUM is ruled by the House of Saxe-Coburg and Gotha, which has been in power since 1831. The Netherlands is ruled by the House of Orange-Nassau, which has been in power since 1815. Finally, the United Kingdom is ruled by the House of Windsor, which has been in power since 1917.