Wat Rakhang Khositaram, formerly known as Wat Bang Wa Yai, is an Ayutthaya period temple. During the Thon Buri period, the temple was reconstructed and upgraded as a royal temple by King Taksin the Great who ordered the construction of a palace in the area. The temple then became the residence of the Supreme Patriarch. Later in the reign of King Rama I the Great, a bell was discovered at Wat Bang Wa Yai. This bell was moved to Wat Phra Kaeo and five replacement bells were then built. The temple was named “Wat Rakhang Khositaram or Temple of the Bells” because of this discovery.