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
Honoré V, Prince of Monaco Although Honoré V never married, he did have a son. Louis Gabriel Oscar Grimaldi was born in Paris on 9 June 1814 and died in Saint-Germain-en-Laye on 15 July 1894. Louis Gabriel Oscar Grimaldi was legitimized, however it was his younger brother, Prince Florestan, who succeeded him. Honoré V, Prince of Monaco Honoré V (13 May/14 May 1778 in Paris – 2 October 1841 in Paris) was Prince of Monaco and Duke of Valentinois. He was born Honoré Gabriel Grimaldi, the first son of Honoré IV of Monaco and Louise d'Aumont. A professor of the period, one Victor de la