Rainier III, Prince of Monaco of Monaco, the Palais Princier announced that Rainier's son, Hereditary Prince Albert, would take over the duties of his father as regent since Rainier was no longer able to exercise his royal functions. On 1 April 2005, the Palace announced that Rainier's doctors believe his chances of recovery were "slim". On 6 April, Prince Rainier died at the Cardiothoracic Center of Monaco at 6:35 AM local time at the age of 81. He was succeeded by his only son, who became Prince Albert II. He was buried on 15 April 2005, beside his wife, Princess Grace, at the Cathedral of
Antonio I, Prince of Monaco to King Louis XIV of France in the Parlement on account of being Duke of Valentinois and a Peer of France. He was made a knight of the French royal orders in 1724. Antonio married 13 June 1688 Marie de Lorraine, ""Mademoiselle d'Armagnac"" (12 August 1674 – 30 October 1724), daughter of Louis of Lorraine, Count Armagnac. They had six daughters of whom only three survived infancy : Antonio also had a number of illegitimate children: Schwennicke, Detlev (Ed.) "Europäische Stammtafeln", J.A. Stargardt Verlag, Marburg, volume II, table 201. Antonio I, Prince of Monaco Antonio I (25 January 1661 –