Sir John Bowring , or Phraya Siamanukulkij Siammitrmahayot (17 October 1792 – 23 November 1872) was a British political economist, traveller, writer, literary translator, polyglot and the fourth Governor of Hong Kong. He was appointed by Queen Victoria as emissary to Siam, later he was appointed by King Mongkut of Siam as ambassador to London, also making a treaty of amity with Siam on April 18, 1855, now referred to as the "Bowring Treaty". His namesake treaty was fully effective for 70 years, until the reign of Vajiravudh. This treaty was gradually edited and became completely ineffective in 1938 under the government of Plaek Phibunsongkhram. Later, he was sent as a commissioner of Britain to the newly created Kingdom of Italy in 1861. He died in Claremont in Devon on November 23, 1872.