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.
List of heirs to the Monegasque throne
This list begins with the sole reign of Catalan, Lord of Monaco, whose father Jean (or Giovanni) I first set out a law of succession in his will in 1454. Until 1427 Monaco was effectively a condominium with up to three rulers simultaneously; after Jean I became sole ruler he sought to keep the throne for one person, of the Grimaldi family. This succession included the stipulation that while a woman could inherit if there were no male heirs in her immediate family, she must marry a Grimaldi cousin to keep the inheritance in the family. The first Lady of Monaco, Claudine Grimaldi, abdicated in favour of her cousin and later married him; a later Princess of Monaco, however, would defy this law. It was ignored, however, and the throne continued to pass to their descendants, who adopted the name Grimaldi in place of their own.