Burma took Ayutthaya's former king prisoner in 1767, and in 2013 a Thai team dug up the tomb said to hold his ashes

Uthumphon became king of Ayutthaya in 1758 and gave up the throne after about two months to his elder brother, who reigned as King Ekathat. Uthumphon became a monk at Wat Pradu. He left the monkhood in 1760 to help defend the city against the Burmese, then returned to it. Burmese forces took Ayutthaya on 7 April 1767 and burned it. Ekathat was killed. A Burmese poetic account says more than 2,000 princes, princesses and retainers and over 800 titled queens were taken away as prisoners; about 30,000 Siamese captives in all went to Burma. At Ava the captives were questioned about Ayutthaya's history and court. The record, the Yodaya Yazawin, later reached Siam under the Thai title "Testimony of the King who Entered a Wat." The Konbaung Chronicle says Uthumphon remained a monk until he died in 1796. Descendants of the captives kept a memory that his ashes lay in a stupa in the Lin Zin Gon cemetery at Amarapura. In 2012 the Mandalay authorities planned to clear the cemetery and said no evidence proved the stupa was his tomb. Thailand's foreign ministry asked for a delay. A Thai team led by architect Vichit Chinalai excavated the stupa. By July 2013 it had found an alms bowl holding human remains and fragments of a monk's robe. The Nation reported a plan for a memorial ground and an Ayutthaya heritage centre costing at least 39 million baht. Whether the memorial was finished is not confirmed^†.