Devan Udayawongse, the Prince Devawongse Varoprakar was a Siamese prince and diplomat during the reigns of Rama V and Rama VI.
Devawongse Varoprakar
From left to right: Prince Devawongse Varoprakar, King Chulalongkorn and Prince Damrong Rajanubhab, c. 1900
Chulalongkorn was the fifth monarch of Siam under the House of Chakri, titled Rama V from 1 October 1868 to his death in 23 October 1910.
Formal portrait, c. 1900s
King Mongkut with Prince Chulalongkorn, both in western style court uniforms, c. 1868
King Chulalongkorn after his second coronation ceremony on 16 November 1873
Photograph of the Front Palace or Wang Na (circa 1890) now the Bangkok National Museum