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 Antonio I, Prince of Monaco Antonio I (25 January 1661 – 20 February 1731) was the sovereign Prince of Monaco from 1701 to 1731. He was the elder son of Louis I of Monaco and Catherine Charlotte de Gramont. In 1683 Antonio was named lieutenant in the Régiment du Roi Infanterie. In 1684 he was named colonel of the regiment of Soissonois. During the Nine Years War he was present at the Battle of Philippsburg (1688), the Battle of Fleurus (1690), the Siege of Mons (1691), and the Siege of Namur (1692). On 21 August 1702 Antonio took the oath