 Prasat Thong strived to eliminate his allies-turned-rivals – the "Okya" Kamhaeng who contested for the throne and Yamada Nagamasa who objected to the takeover of the throne by Prasat Thong.He quickly condemned "Okya" Kamhaeng for treason and execution followed.And he sent Yamada Nagamasa to the south as the governor of Ligor, away from Ayutthaya.