• Politically weaken kingdom --- forced to submit to Ayudhaya during King Leuthai (KingThammaracha II), son of King Lithai
o Last King of Sukhothai
King Thammaracha IV
Moved capital to Song Kwae (Pitsanulok)
His sister married to Borommaracha II of Ayudhaya
Have Prince Ramesuan
Later became Trilokanat
Throne passed to him after King Thammaracha IV
Also King of Ayudhaya