Laukpya

Laukpya (Burmese: လောက်ဖျား or လောက်ဖြား), the Lord of Myaungmya, was a key figure who started the Forty Years' War (c. 1385–1424) between the Mon-speaking Kingdom of Hanthawaddy (Pegu) and the Burmese-speaking Kingdom of Ava. A brother of King Binnya U of Hanthawaddy, Laukpya ruled the Irrawaddy delta like an independent king during his brother's 35-year reign. In 1383, when Binnya U's eldest son Razadarit proclaimed himself king after Binnya U's death, Laukpya refused to submit to his 16-year-old nephew. In 1385, as Razadarit prepared to march to the delta, Laukpya sought assistance from King Swa Saw Ke of Ava with the promise of submission to Ava.
Laukpya's wrote to Swa:
Glorious king, the ungrateful son, who was rebel when his father was alive, now has dared to ascend the great Binnya U's throne, assuming the title of "Razadarit". Before he can make his position secure, I beg my lord to attack Pegu both by land and by water. Your humble servant holds both Bassein and Myaungmya, and shall attack Pegu by water. When you have achieved your great triumph, take all the treasures for yourself; as to your humble servant, grant him only the annual revenue.
Swa's acceptance of Laukpya's invitation resulted in the Forty Years' War between Ava and Pegu. Swa's inaugural invasions of Hanthawaddy in 1385–86 and 1386–87 could not break Razadarit's defenses. In 1388/89, Razadarit attacked the delta. Razadarit's army could not take Myaungmya, which was heavily fortified, and was defeated at Bassein which was defended by Laukpya's three sons. Then Laukpya ventured out of his defenses, and was promptly captured by Razadarit's forces. Myaungmya surrendered in 1390. The entire delta followed. Laukpya's son Bya Kon and son-in-law Bya Kyin both fled to Ava. Swa welcomed the princes, and made Bya Kon governor of Salin and Bya Kyin, governor of Prome (Pyay).
Laukpya had 16 wives and 70 children.