Mingyi Swa Saw Ke (also spelled Minkyiswasawke or Swasawke (1330–1400) is king of Ava from 1367 to 1400.
When he is elected by the ministers to succeed King Thadominbya who left no heir, Swasawke takes over a kingdom that is barely three years old, and still faces external and internal threats.
By the end of his long reign, Swasake has successfully cemented Ava's authority in Upper Burma.
In the north, he successfully fights off the Shan raids into Upper Burma, a longstanding problem since the days of Sagaing and Pinya kingdoms.
He maintains friendly relations with Lan Na Kingdom in the east, and Launggyet Kingdom of Arakan in the west.
In the south, he brings the semi-independent kingdoms of Toungoo (Taungoo) and Prome (Pyay) firmly into Ava's orbit, but his attempts to extend control farther south are unsuccessful.
His invasions of the Hanthawaddy Kingdom (Pegu/Bago) touch off the Forty Years' War (1385–1424) between Ava and Pegu.
Swasawke and King Razadarit of Pegu agreeto a truce in 1391 that lasts until Swasawke's death in 1400.
For the most part, his long reign is peaceful.
In contrast to the short reigns by various kings since the fall of Pagan, Swasawke's thirty-two-year reign brings much needed stability to Upper Burma.
He redevelops the economy of the kingdom by repairing the irrigation system, and reclaiming much of the arable land which had lapsed into wilderness as the result of the Mongol invasions nearly a century earlier.
Under Swasawke's leadership, Upper Burma, centered in Ava, finally achieves the stability it had lacked for much of the past hundred years.
