Wat Ratchaburana in Ayutthaya was built in 1424 by King Borommaracha II (1424–1448) to house the ashes of his elder brothers Chao Aai Phraya and Chao Yih Phraya.

The brothers died battling each other on war elephants over the succession of the throne, after their father, King Inthrathirat, i.e. Phra Inthracha, had passed away in 1424.