Foundation in 1345 AD under King Phayu
Thai historical references place the temple's foundation in 1345 AD, when King Phayu initiated the first major complex stage in what is now the Old City. Starting with this date helps you read the site as a core Lanna anchor, not an isolated shrine.
Expansion in 1347 AD and early temple name
The same Thai chronology describes a second-stage expansion around 1347 AD and records the early name Wat Li Chiang Phra. This explains why the complex feels architecturally layered instead of uniform from one single construction phase.
Phra Buddha Sihing and identity shift
During the reign of King Saen Mueang Ma, records describe the transfer of Phra Buddha Sihing from Chiang Rai to this temple. That sacred-image arrival is central to how Wat Phra Singh became one of the defining spiritual references in Chiang Mai.
1935 AD and 1940 AD recognition milestones
Two 20th-century anchors often cited in Thai records are the 8 March 1935 AD national historic-site gazette listing and the 23 November 1940 AD elevation to first-class royal temple status. These milestones explain why the complex operates both as living worship space and protected heritage site today.