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
Louis II, Prince of Monaco Prince. When Louis died five years later, he was succeeded by his grandson, Prince Rainier III. Louis II, Prince of Monaco Louis II (12 July 1870 – 9 May 1949) was Prince of Monaco from 1922 to 1949. Born Louis Honoré Charles Antoine Grimaldi in Baden-Baden, Germany, he was the only child of Prince Albert I of Monaco (1848–1922), and Lady Mary Victoria Hamilton (11 December 1850 – 14 May 1922). His mother was a daughter of William Alexander Anthony Archibald Hamilton, 11th Duke of Hamilton, and his wife, Princess Marie Amélie Elizabeth Caroline of Baden. Within a year of