Wat Mahawan Wanaram lies just outside the city wall to the west at the junction with Highway 1015. According to onsite information this is an old temple built in 657 A.D. at the very beginning of the Hariphunchai Kingdom. It is said that Princess Chamathewi brought a Buddha image under a Naga hood or a black stone Buddha image from Lawo (Lopburi) to be enshrined in this temple. The people called it Phra Rod Luang or Phra Rod Lamphun. Later the image was used as a model for creating votive tablets which became very well-known called ‘Phra Rod Mahawan’. The temple prospered throughout many reigns but was deserted during times of war. It was restored in 1077 A.D. after Prince Sapasit, son of Phraya Rodrad was ordained as this temple. It appears that the large Buddha image here was cast at that time. An interesting feature of this temple is the large chedi built over the top of an old one. The ubosot and viharn have also been restored.