In 1563 AD, 15 years after Suriyothai died, Prince Bayinnong ascended to the throne as the King of Hongsawadee, the heir of the King Tabengchaweti. He led his army past the Maelamao border taking over the northern cities on his way to the Kingdom of Ayodhya. Once King Bayinnong had control over Kampaenphet, Sukhothai, and Sawankhalok, he led his forces to the northern kingdom of Phitisanulok. King Bayinnong defeated Phitisanulok and took the eldest son of the King of Phitisanulok, Prince Ong Dam (or Prince Naresuan). Prince Ekkathat was Prince Naresuan's younger brother and was trained in the military skills and traditions of Burma. In 1581, King Bayinnong died of an illness from his coming of a conflict battle against the Kingdom of Yakkai[clarification needed]. The son of King Bayinnong became king afterwards. Some of the Northern states revolted against Hongsadee including Phitsanulok, Ayodhya, and Mon to gain independence.