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
Honoré II, Prince of Monaco Honoré II, Prince of Monaco Honoré II (24 December 1597 – 10 January 1662) was Prince of Monaco from 1604 to 1662. He was the first to be called Prince, but started his reign as Lord of Monaco. Honoré II was born on December 24, 1597. He was the son of Hercule, Lord of Monaco (24 September 1562 – 21 November 1604) and Maria Landi. His father was murdered when he was six, and he succeeded under the regency of his uncle, Frederico Landi, 4th Prince of Val di Taro. Landi was a loyal ally and friend of Spain and