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Prince Chulalongkorn of Siam [Thailand] (seated, centre), with Prince Bhanugrangsi Savanwongse and Prince Kasemsan Sophak (seated left) with Louis Thomas Leonowens (standing right). Photograph by John Thomson, 1865.

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Prince Chulalongkorn of Siam [Thailand] (seated, centre), with Prince Bhanugrangsi Savanwongse and Prince Kasemsan Sophak (seated left) with Louis Thomas Leonowens (standing right). Photograph by John Thomson, 1865.