The Three Kings Monument, known in Thai as Phra Borommarachanusawarih Sahm Kasat (พระบรมราชานุสาวรีย์สามกษัตริย์) or simply Anusawarih Sahm Kasat (อนุสาวรีย์สามกษัตริย์), stands in front of the Chiang Mai City Arts & Cultural Centre, and commemorates the 1287 AD treaty between the three co-rulers of the Lan Na Empire, i.e. from left to right in order of appearance: King Ngam Meuang of the Kingdom of Phayao, King Mengrai of the Kingdom of Chiang Mai, and King Ramkamhaeng of the Kingdom of Sukhothai, who is also known as Phaya Ruang. This pact of mutual defense, initiated by King Mengrai, consolidated the power of the northern regions against their common enemies. Whilst filming a group of school children came to the monument to make group photos of their classes and all were wearing their traditional Lan Na uniform, which is compulsory for all students in Chiang Mai on Fridays, akin to the obligatory nationwide uniform day on Mondays when everyone in Thailand must wear their official uniform to work, from civil servants to teachers. Adjacent to the south of the Chiang Mai City Arts & Cultural Centre is Wat Inthakhin Sadeua Meuang (วัดอินทขีลสะดือเมือง), whose name means ‘Temple of the City Pillar at the Navel of the City’, and was the former location of the City Pillar Shrine, known in Thai as Lak Meuang (หลักเมือง) or Sao Inthakhin (เสาอินทขีล), before it was moved to its current location nearby, and is therefore still named for it. 回