Yazathingyan was a co-founder of Myinsaing Kingdom in today's central Burma (Myanmar). A Former commander in Pagan Empire's military, Yazathingyan was the middle brother of the Three Shan Brothers that founded Myinsaing Kingdom, which filled the void in central Burma following the collapse of Pagan's authority in 1287. THe three brothers ruled as co-regents from their respective capitals in Kyaukse district, Yazathingyan from Mekkara. CIrca 1312, Yazathingyan died. AFter his death, the youngest brother Thihathu poisoned the eldest brother Athinhkaya, and took over the throne for himself. YAzathingyan was a born to Shan father and a Burman mother in the 1260s. HE had two younger brothers and a sister. THeir father, Theinkhabo, was a younger brother of Shan saopha from the Shan Hills who had taken shelter in Kyaukse as a political refugee in 1260. THeir mother was a daughter of a Burman banker from Myinsaing.