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
Constantine III, Prince of Mukhrani III married twice. Once with Princess Ketevan (her surname is not known) and secondly Princess Barbare Eristavi of Aragvi. Constantine had four children: Constantine III, Prince of Mukhrani Constantine III (, "Konstantine III Mukhranbatoni") (1696 – 26 October 1756) was a Georgian prince and the head of the Mukhrani branch of the royal Bagrationi dynasty of Kartli. He was Prince ("batoni") of Mukhrani and "ex officio" commander of the Banner of Shida Kartli and Grand Master of the Household ("msakhurt-ukhutsesi") at the court of Kartli from 1735 and 1756. Constantine was a military commander under his suzerains, Georgian kings Teimuraz