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 II, Prince of Monaco He was interred in the Cathedral of St. Nicholas (it stood on the location of the current cathedral) in Monaco. A collector's silver coin has been issued by the Treasury of Monaco portraying Honoré II on the occasion of the 400th anniversary (1612 - 2012) of the use of the title "Sovereign Prince" the silver coin has a €10 face value. 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