Albert II, Prince of Monaco
Prince Albert II is one of the wealthiest royals in the world, with assets valued at more than $1 billion, which include land in Monaco and France. Although Prince Albert does not own the Prince's Palace of Monaco, he does own shares in the "Société des bains de mer de Monaco", which operates Monaco's casino and other entertainment properties in the principality.
Wilhelm Karl, Duke of Urach
Through his mother, Wilhelm was a legitimate heir to the throne of Monaco. Wilhelm's cousin Prince Albert I of Monaco had only one son, Louis, who was unmarried and had no legitimate children. The French Republic, however, was reluctant to see a German prince ruling Monaco. Under French pressure, Monaco passed a law in 1911 recognising Louis's illegitimate daughter, Charlotte, as heir; she was adopted in 1918 by her grandfather Prince Albert I as part of the Monaco Succession Crisis of 1918. Wilhelm was relegated to third in line to Monaco's throne, behind Louis and Charlotte. Furthermore, in July 1918 France and Monaco signed the Franco-Monegasque Treaty; it required all future princes of Monaco to be French or Monegasque citizens and secure the approval the French government to succeed to the throne. After the accession of Prince Louis II in 1922, Wilhelm renounced his rights of succession to the throne of Monaco in favour of distant French cousins, the counts de Chabrillan, in 1924.