Sithu Thanbawa
Sithu Thanbawa was a Burmese prince who held in fief the Five Irrigated Districts of the Ava Kingdom in the late 14th century. Descended from the Pagan royal lines from both sides, the prince was an ancestor of kings Mingyi Nyo, Tabinshwehti and Nanda of the Toungoo dynasty.
Brief
Probably born in the late 1360s, Sithu Thanbawa was the elder child of Prince Sithu Min Oo of Pinya and Princess Minkhaung Medaw of Ava. His father was a son of King Uzana I of Pinya and his mother was a daughter of King Swa Saw Ke of Ava. He had two younger brothers, Thray Sithu, who became governor of Myinsaing, and Thihapate, who became governor of Taungdwin.According to the royal chronicles, Sithu Thanbawa held the Five Irrigated Districts, by 1390. However, unlike most other feudal lords of the day, who were also governors of their fiefs, the prince apparently did not assume administrative duties of his fiefs, since he is not listed as a governor of the Yamethin District, not in 1390 or any time before or after, in the chronicles. Furthermore, unlike other princes of the day, he went to the front only once, in 1390–1391 when he commanded a regiment during the Forty Years' War.
In all, the prince is not heard from again in the chronicles after 1390–1391, except with regard to his descendants. He had at least one child, Gov. Sithu of Paukmyaing. Through that child, kings Mingyi Nyo, Tabinshwehti and Nanda of the Toungoo Dynasty, were Sithu Thanbawa's descendants.