According to the Arakanese chronicles, in 1774, twelve villages on Ramree Island revolted against the heavy taxes imposed by King
Sanda Thumana. The rebels were initially led by four generals - Sanay Phyu, Lar Phyu, Maung Htwe, and Aung Son (Sanda Thaditha) - but Aung Son eventually eliminated the others and assumed sole command of the army. On 10 February 1775, Sanda Thumana sent his general Ananta Thirikyawhtin and a large army to subdue the rebels, who had been joined by inhabitants of
Cheduba Island. However, the general was defeated and forced to retreat. On 23 April 1777 the king was overthrown by rebel leaders Poe Shwe and Do We. The next day, Poe Shwe was enthroned as
Sanda Wimala II. In the same year, Ba htaw, lord of
Thandwe, asked Aung Son to conquer and rule Arakan. Aung Son agreed and by May 25 his army had arrived near the capital,
Mrauk U, and set up camp. Sanda Wimala II sent his forces against the invaders, but his army was defeated and suffered heavy losses. He fled to
Shite-thaung Temple for refuge, later becoming a monk. Aung Son occupied Mrauk U on 2 June 1777 and took the throne as Sanda Thaditha Raza (စန္ဒသတိဿရာဇာ). His queen was Sein Khine and Thet San Shwe became crown prince. ==Reign==