Albert II, Prince of Monaco Albert II, Prince of Monaco Albert II (Albert Alexandre Louis Pierre Grimaldi; born 14 March 1958) is the reigning monarch of the Principality of Monaco and head of the princely house of Grimaldi. He is the son of Prince Rainier III and the American actress Grace Kelly. Prince Albert's sisters are Caroline, Princess of Hanover, and Princess Stéphanie. In July 2011, Prince Albert married Charlene Wittstock. 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
Albert II, Prince of Monaco his father and died without lawful heirs, it would have triggered Article 3 of the 1918 Franco-Monegasque Treaty, according to which the Principality of Monaco would become a protectorate of the French Republic. Prior to 2002, Monaco's constitution stipulated that only the last reigning prince's "direct and legitimate" descendants could inherit the crown. On 2 April 2002, Monaco promulgated Princely Law 1.249, which provides that if a reigning prince dies without surviving legitimate issue, the throne passes to his legitimate siblings and their legitimate descendants of both sexes, according to the principle of male-preference primogeniture. Following Albert's accession, this law