His Majesty King Bhumibol Adulyadej is graciously pleased; born December 5 1927) was the King of Thai. He is also known as Rama-nine while he is King of the Chakri dynasty's ninth series. After reigning since June 9 1946, he is the world's longest serving current head of State, and the longest reigning monarch in Thai history, serving for 68 years ago 172 days. [1]