On 31 March 2005, following consultation with the Crown Council 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.
2005. március 31-én a monacói palota bejelentette, hogy Albert örökös átvenné apja kötelességeit, mert Rainier tovább már nem alkalmas uralkodásra.