Monaco succession crisis of 1918 of this event, pursuant to the clauses of the treaty of 17 July 1918." The French government at the time was still the Vichy regime. Louis II died on 9 May 1949. The Principality of Monaco passed to his grandson, Rainier III. In the absence of an heir male, the ducal titles of Valentinois and Estouteville became extinct in French nobiliary law. Before Rainier III married Grace Kelly in April 1956, he notified the French government of his plans; the French ministry of foreign affairs replied with a message of official congratulations. Count Louis de Causans is suing the French
Louis II, Prince of Monaco Mussolini. In 1943, the Italian Army invaded and occupied Monaco. Shortly thereafter, following Mussolini's collapse in Italy, the German army occupied Monaco and began the deportation of the Jewish population. Among them was René Blum, founder of the Opera, who died in Auschwitz, a Nazi concentration camp. Under Prince Louis' secret orders, the Monaco police, often at great risk to themselves, warned people in advance that the Gestapo was about to arrest them. However, throughout the War, Prince Louis' vacillation caused an enormous rift with his grandson Rainier, the heir to the throne, who strongly supported the Allies against the