Chao Sam Phraya Museum is located on Ayutthaya's city island at Rojana Road
opposite Ayutthaya's Rajabhat University. The museum is named after the third son of
King Intharacha (r.1409-1424), who once on the throne as King Borommaracha II (r.
1424-1448) ordered the construction of Wat Racha Bun or the Monastery of Royal
Merit (presently called Wat Racha Burana) on the cremation site of his two elder
brothers. In ancient times Khlong Chakrai Noi ran west of its premises. Three monastic