Bagyidaw (Burmese: ဘကြီးတော်, pronounced [ba̰dʑídɔ̀]; also known as Sagaing Min, [zəɡáiɰ̃ mɪ́ɰ̃]; 23 July 1784 – 15 October 1846) was the seventh king of the Konbaung dynasty of Burma from 1819 until his abdication in 1837.[1] His ill-advised decision to allow the Burmese army to pursue the rebels along the vaguely defined borders led to the war.[3] Bagyidaw was forced to cede all of his grandfather's western acquisitions, and Tenasserim to the British, and pay a large indemnity of one million pounds sterling, leaving the country crippled for years.Devastated, Bagyidaw held out hope for some years that Tenasserim would be returned to him, and paid the balance of indemnity in 1832 at great sacrifice.[5] His brother Crown Prince Tharrawaddy raised a rebellion in February 1837, and Bagyidaw was forced to abdicate the throne in April 1837.The crown prince built a beautiful white stupa in memory of his first wife named Myatheindan Pagoda at Mingun.In February 1814, a Burmese expeditionary force invaded Manipur, placing Marjit Singh, who grew up in Ava, as vassal king.[10] Bagyidaw inherited the second largest Burmese empire but also one that shared a long vaguely defined borders with British India.[1] The first to test Bagyidaw's rule was the Raja of Manipur, who was put on the Manipuri throne only six years earlier by the Burmese.Raja Marjit Singh failed to attend Bagyidaw's coronation ceremony, or send an embassy bearing tributes, as all vassal kings had an obligation to do.In October 1819, Bagyidaw sent an expeditionary force of 25,000 soldiers and 3,000 cavalry led by his favorite general Maha Bandula to reclaim Manipur.At Bagyidaw's court, the war party which included Gen. Bandula, Queen Me Nu and her brother, the lord of Salin, made the case to Bagyidaw that a decisive victory could allow Ava to consolidate its gains in its new western empire in Arakan, Manipur, Assam, Cachar and Jaintia, as well as take over eastern Bengal.On 11 May, a British naval force of over 10,000 men, led by Archibald Campbell entered the port city of Yangon, taking the Burmese by surprise.By April 1825, the British had driven out the Burmese forces from Arakan, Assam, Manipur, Tenasserim, and the Irrawaddy delta where Gen. Bandula died in action.The world the Burmese knew of conquest and martial pride, built on the back of impressive military success of prior 75 years, had come crashing down.