Narapatisithu
Narapati Sithu was king of Pagan dynasty of Burma from 1174 to 1211. He is considered the last important king of Pagan. His peaceful and prosperous reign gave rise to Burmese culture which finally emerged from the shadows of Mon and Pyu cultures. The Burman leadership of the kingdom was now unquestioned. The Pagan Empire reached its peak during his reign, and would decline gradually after his death.
The reign saw many firsts in Burmese history. For the first time, the term Mranma was openly used in Burmese language inscriptions. The Burmese script became the primary script of the kingdom, replacing Mon and Pyu scripts. The first Burmese customary law based on his grandfather Alaungsithu's judgments was compiled, and used as the common system of law for the entire kingdom. He founded the Royal Palace Guards, which later evolved to become the nucleus of the Burmese army in war time.
He encouraged further reforms of the Burmese Buddhism. By the efforts of his primate Shin Uttarajiva, the majority of the Burmese Buddhist monks realigned themselves with the Mahavihara school of Ceylon.
Early life
The future king was born to Prince Narathu and his wife in Pagan on 8 October 1150. The chronicles do not agree on his birth and reign dates. The table below lists the dates given by the four main chronicles.| Chronicles | Birth–Death | Age | Reign | Length of reign |
| Zatadawbon Yazawin | 1148–1210 | 62 | 1173–1210 | 37 |
| Zatadawbon Yazawin | 1146–1212 | 66 | 1175–1212 | 37 |
| Maha Yazawin | 1132–1197 | 65 | 1164–1197 | 33 |
| Yazawin Thit and Hmannan Yazawin | 1138–1211 | 73 | 1174–1211 | 37 |
| Scholarship | 8 October 1150 – 18 August 1211 | 60 | May 1174 – 18 August 1211 | 37 |
Note that all the chronicles say he was born on a Tuesday but the king's date of birth by scholarship fell on Sunday.
Heir apparent
In 1171, his elder brother Naratheinkha succeeded the throne, the new king was greeted with multiple rebellions by the Kudus in the Tagaung region in the north and the Mons of Tenasserim coast in the south. Naratheinkha appointed his younger brother Narapatisithu as the heir apparent and commander-in-chief to deal with the rebellions. In 1174, Naratheinkha seized Narapati's wife Weluwaddy after he sent Narapati on a mission. Narapati retaliated by sending a group of 80 led by Aungzwa to assassinate his brother. After the assassination, he ascended the throne as Sithu II in honor of his grandfather Alaungsithu.He came to power some time between 27 March 1174 and 10 August 1174, most probably between April or May 1174. He assumed the regnal name "Śrī Tribhuvanāditya Pavaradhammarāja."
Reign
One of the first acts of Sithu II was to found the Royal Palace Guards, whose sole duty was to guard the palace and the king. He then had to pacify the kingdom, which had seen much instability since the death of Alaungsithu in 1167, and had grown increasingly restless. He successfully persuaded the great-grandson of the Mon king Manuha not to start a rebellion. The rest of the reign was free of rebellions.Economy
By all accounts, his reign was peaceful and prosperous. Following Anawratha's footsteps, Narapatisithu worked on increasing Upper Burma's economic and manpower advantages over the Irrawaddy valley. He continued to develop the Kyaukse region by building the Kyaukse weir, and expanded the irrigable areas by starting the Mu canals in the present-day Shwebo District. His attempts to expand irrigation southwards into Minbu District by building a canal system repeatedly failed, and had to be abandoned. Through his efforts, the kingdom grew even more prosperous.The prosperity of the kingdom is reflected in the superb the Gawdawpalin and Sulamani temples in Pagan he built. The king also built the Minmalaung, Dhammayazika and Chaukpala nearby. His lesser pagodas, such as the Zetawun in Myeik District, the Shwe Indein Pagoda in Nyaungshwe shows the reach of his kingdom.
Rise of Burmese culture
His reign also saw the rise of Burmese culture which finally emerged from the shadows of Mon and Pyu cultures. The Burmans, who had entered the Irrawaddy valley en masse only in the 9th and 10th centuries, had led the Pagan Kingdom under the name of the Pyu. But now, the Burman leadership of the kingdom was now unquestioned. For the first time, the term Mranma was openly used in Burmese language inscriptions. The Burmese script became the primary script of the kingdom, replacing Mon and Pyu scripts.Administration
Narapatisithu appointed Nadaungmya, great-grandson of Nyaung-U Hpi, chief justice. His chief minister was Ananda Thuriya, reportedly a man of valor who continually hunted down robbers and presented them alive to the king. He had the first Burmese customary law based on his grandfather Alaungsithu's judgments compiled, and used as the common system of law for the entire kingdom.Religious reforms
He encouraged further reforms of the Burmese Buddhism. By the efforts of his primate Shin Uttarajiva, the majority of the Burmese Buddhist monks realigned themselves with the Mahavihara school of Ceylon away from the less orthodox Conjeveram-Thaton school.Sinhalese raids
According to the Sinhalese Mahavamsa Chronicles, the King of Ceylon, Parakramabahu I, dispatched an expedition in 1180 to settle a trade dispute. It suffered from storms and several ships were wrecked. But one ship reached the Crow Island near Mawlamyaing and five reached Pathein, killing a governor, burning villages, massacring the inhabitants, and carrying off a number into slavery. As the Burmese chronicles do not mention these events, there is no check on the Sinhalese version. Historian G.E. Harvey writes:Mahavamsa does not explain how a few little medieval ships could transport enough men to ravage half Burma and fight many fierce battles. The invasion of course was a raid, and probably over before news of it reached Pagan.Nevertheless, the friendly relations were soon resumed. The historical cultural exchanges between the countries continued. The reformation of Burmese Buddhism through the Sinhalese Mahavihara school continued.