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 Nazis. For a number of months in 1944, communists participated in the Liberation administration of Monaco and it is a moot point to debate how strong a position Louis II was in, in 1944, to resist any attempts to abolish the monarchy in Monaco. Following the liberation of Monaco by the Allied forces, the 75-year-old Prince Louis did little for his principality and it began to fall into severe neglect. By 1946, he was spending most of his time in Paris and on 24–27 July of that year, he married in Monaco for the first time. His wife was Ghislaine