Rama III
Nangklao (Thai: พระบาทสมเด็จพระนั่งเกล้าเจ้าอยู่หัว, RTGS: Phra Bat Somdet Phra Nangklao Chao Yu Hua; 31 March 1788 – 2 April 1851), birth name Thap (Thai: ทับ), also styled Rama III, was the third king of Siam under the House of Chakri, ruling from 21 July 1824 to 2 April 1851.