Career
The long and slow descent of the dynasty finally came to the forefront during his reign in the form of internal and external instabilities. In the northwest, the Manipuri horsemen raided Burmese territory in early 1724. The retaliatory expedition to Manipur in November 1724 failed.
In the east, southern Lan Na (Chiang Mai), under Burmese rule since 1558, successfully revolted in 1727.
Taninganway tried to recapture the breakaway region twice but both tries failed. By 1732, southern Lan Na was independent although a strong Burmese garrison in Chiang Saen in northern Lan Na confined the rebellion to the Ping valley around Chiang Mai.
In 1724, U Kala completed Maha Yazawin (the Great Chronicle), the first comprehensive national chronicle of Burmese history based on earlier sources. He was born to the heir apparent Prince Sanay and his chief queen Maha Dewi in 1689.
He was made heir apparent on 1 November 1711 (Sunday, 8th waning of Tazaungmon 1073 Master of Engineering).