Peguan rising. [31] Battle of Bangkeo in Ratchaburi After crossing the Thai frontier at Melamao Pass, the Burmese marched towards Phitsanulok , capturing Phichai and Sukhothai on the way. In his interrogation of two Phichai officials, Azaewunky referred to Chao Phraya Surasih who was the Governor of Phisanulok as "Phraya Sua"