Wat Panan Choeng is situated in Klong Suan Plu sub-district, PhraNakorn Si Ayutthaya district. According to a legend, King Sai Nam Phung, a ruler of the Ayutthaya Kingdom, built this Buddhist monastery and named it “Wat Phra Chao Phra Nang Choeng” (or WatPhra Nang Choeng) Housed in the royal wihan, “Phra Phuttha Trai RattanaNayok”, also called Luang Pho Tho by the locals and Sam Pho Kong (A guardian for mariners) by the Chinese, is the largest Buddha statue in Ayutthaya province with 20 metres lap size. According to the legend when Ayutthaya almost defeated to the enemy, there were tears flowing down from both eyes of this immense statue every 15 minutes. Many Chinese people in Thailand come to pay homage to this temple as apart from Luang Pho Tho, there is LuiIm Yee monastery inside the temple. Inside the monastery enshrine Thai Buddhas and Chinese god statues.