King Bhumibol Adulyadej was the world's longest-reigning and the country's revered monarch. Bhumibol, a constitutional monarch with no formal political role, was widely regarded as Thailand's unifying figure.
In Photos: The Reign of Thai King Bhumibol Adulyadej

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King Bhumibol Adulyadej of Thailand, Rama IX, is carried by a cortege during the Coronation ceremony, May 5, 1950.

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Thailand's Prince Bhumibol, left, now King Bhumibol Adulyadej, known as Rama IX, with his brother Prince Ananda, the former King Ananada Mahidol, in the grounds of the school in Lausanne Switzerland, on March 7, 1935.