SanamChan Palace. Located in Muang District. Nakhon Pathom Province. Phra Pathom Chedi from about 2 km in area 355.2 acres built by King Rama. After his death. Sanam Chan Palace is the official office of the various provinces of Nakhon Pathom, including a campus of Silpakorn University, Sanam Chan Palace, currently under the supervision of the Bureau of.