Narathihapate

Kublai Khan's Mongol forces invaded the Pagan Empire after King Narathihapate refused to pay tribute. The Mongols defeated the Pagan army and sacked the capital, Bagan. Narathihapate fled south, and the empire collapsed, leading to a period of political fragmentation.

As the Mongol army approached Bagan, King Narathihapate abandoned the capital and fled to the southern city of Prome. His flight demoralized his forces and left the empire defenseless, earning him the epithet 'Taruk-Pye' (the king who fled from the Chinese).

After fleeing to Prome, King Narathihapate was assassinated by his own son, Thihathu, who sought to seize power. The assassination marked the end of the Pagan dynasty and plunged Burma into a period of civil war and fragmentation.