On 24 November 1530, Mingyi Nyo died and Tabinshwehti ascended the throne. The 14-year-old new king took Ye Htut's elder sister Khin Hpone Soe as one of his two principal queens, and rewarded his childhood staff and friends with royal titles and positions. Ye Htut, already a close confidant of the new king, instantly became a powerful figure in the kingdom which was surrounded by increasingly hostile states. In the north, the Confederation of Shan States had conquered the Ava Kingdom just three and a half years earlier. To the west was the Confederation's ally the Prome Kingdom. To the south lay the Hanthawaddy Kingdom, the wealthiest and most powerful of all post-Pagan kingdoms. The impending threat became more urgent after the Confederation defeated its former ally Prome in 1532–1533. Tabinshwehti and the Toungoo leadership concluded that their kingdom "had to act quickly if it wished to avoid being swallowed up" by the Confederation.