Louis II, Prince of Monaco
On 26 June 1922, Prince Albert I died in Paris. Louis Grimaldi ascended to the throne as Louis II, Prince of Monaco. While his reign never achieved the grandeur of his father, Louis II left an indelible imprint on the tiny principality. In 1924 the Monaco Football Club was formed and in 1929, the first Grand Prix of Monaco automobile race was held, won by Charles Grover (aka "Williams") driving a Bugatti painted in what would become the famous British racing green color. He collected artefacts belonging to Napoleon I which are now assembled and displayed in the Napoleon Museum attached to the Royal Palace in Monte Carlo.
Succession to the Monegasque throne
Under the constitution of Monaco, the crown passes according to male-preference cognatic primogeniture. Only persons descended from the reigning monarch and the reigning monarch's siblings and their descendants, whose parents have been married at some point with the monarch's approval, and who are Monegasque citizens are eligible. Children born as a result of adultery are permanently excluded. A dynast forfeits succession rights if he or she marries without the monarch's permission, along with descendants of the unapproved marriage, but can be restored into the line of succession if the marriage produces no issue and ends before the demise of the crown.