Wat Kasattrathirat Woraviharn It is a royal temple of the third class, Worawihan type, located along the Chao Phraya River. Phra Nakhon Si Ayutthaya District Outside the city island on the west side Opposite to Wang Lang or Suan Luang Palace, formerly known as "Wat Kasattra" or "Wat Kasattraram", Wat Kasattrathirat Woraviharn It is an ancient temple built in the Ayutthaya period as the capital. There is a Phra Prang as the president of the temple. In the reign of King Rama I, Prince Krom Luang Anurak Thewet, Department of the Royal Household and Krom Khun Isaranurak (Ket) renovated the whole monastery.