Phra Bat Somdet Phra Poraminthra Maha Chulalongkorn Phra Chunla Chom Klao Chao Yu Hua (Thai: พระบาทสมเด็จพระปรมินทรมหาจุฬาลงกรณ์ พระจุลจอมเกล้าเจ้าอยู่หัว), or Rama V (20 September 1853 – 23 October 1910), was the fifth monarch of Siam under the House of Chakri. He was known to the Siamese of his time as Phra Phuttha Chao Luang(พระพุทธเจ้าหลวง – The Royal Buddha). His reign was characterized by the modernization of Siam, government and social reforms, and territorial cessions to the British Empi ...