Key Facts
- Duration
- 1315–1365 (~50 years)
- Dynasty
- Junior branch of Myinsaing dynasty
- Formal secession from Pinya
- 1325
- Successor state
- Ava Kingdom (founded 1365)
- Classical Pali name
- Jeyyapura ('Victorious City')
Imperial Zenith Metrics
Historical Trajectory
Phase I: Rise
The Sagaing Kingdom emerged when Prince Saw Yun fought for and won de facto autonomy from his father, King Thihathu of Pinya, between 1315 and 1317. What had been the northern province of Pinya became an independent polity, formally seceding upon Thihathu's death in 1325. Its survival in the following decades owed largely to Pinya's persistent internal divisions rather than Sagaing's own military strength.
Phase II: Zenith
Sagaing remained a small northern polity throughout its existence, never expanding significantly beyond its provincial base. Its most notable political episode was the mid-period dominance of the court faction led by Nanda Pakyan, who controlled a succession of weak monarchs from the mid-1330s through the 1350s. Princess Soe Min later managed to reconcile Sagaing with Pinya, enabling a joint defense posture against the growing threat from the Shan state of Maw.
Phase III: Decline
From 1356 onward, Sagaing bore repeated devastating raids by the Maw Shan state. In 1364, Maw forces sacked both Sagaing and the neighboring Pinya capital in succession, effectively destroying both kingdoms. In the aftermath, Saw Yun's grandson Prince Thado Minbya seized the ruins of both capitals and in 1365 consolidated the region into the new Ava Kingdom, which became the dominant power of Upper Myanmar for the next two centuries.
Notable Imperial Reigns
Selected rulers mapping the empire’s trajectory