Norodom Sihanouk (Khmer: នរោត្តម សីហនុ31 October 192215 October 2012) was the King of Cambodia from 1941 to 1955 and again from 1993 to 2004. He was the effective ruler of Cambodia from 1953 to 1970. After his second abdication in 2004, he was known as "The King-Father of Cambodia" (Khmer: Preahmâhaviraksat), a position in which he retained many of his former responsibilities as constitutional monarch.