Binnya Ran I was king of Hanthawaddy Pegu from 1424 to 1446. As crown prince, he ended the Forty Years War with the rival Ava Kingdom in 1423. He came to the throne after poisoning his brother King Binnya Dhammaraza in 1424. As king, Binnya Ran largely kept his kingdom at peace for much of his 20year reign when Ava was struggling to keep its territories intact. He pursued an opportunistic policy to keep Ava weak, helping Toungoos rebellion against Ava between 1437 and 1442 during which he placed his son as the viceroy of Toungoo. When Ava reconquered Toungoo in 1442, he did not resume a largescale war against Ava.
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Source: Wikipedia