The Myinsaing Kingdom ( ) was the kingdom that ruled central Burma (Myanmar) from 1297 to 1313. Co-founded by three brothers from Myinsaing, it was one of many small kingdoms that emerged following the collapse of Pagan Empire in 1287. Myinsaing successfully fended off the second Mongol invasion in 1300–01, and went on to unify central Burma from Tagaung in the north to Prome (Pyay) in the south. The brothers' co-rule ended between 1310 and 1313, with the death of the two elder brothers. In 1315, the central Burmese state split into two rival states of Pinya and Sagaing. Central Burma would not be reunified until the rise of Ava five decades later.