Wikipedia
Uthumphon
Uthumphon or Uthumphon Mahaphon Phinit was the 32nd and penultimate monarch of the Ayutthaya Kingdom, ruling in 1758 for about two months. Facing various throne claimants, Uthumphon was finally forced to abdicate and enter monkhood. His preference of being a monk rather than keep the throne, earned him the epithet "Khun Luang Ha Wat" , or "the king who prefers the temple".