Kingdom of Rattanatingsa or Kingdom of Chiang Mai (Thai: นครเชียงใหม่; full name: รัตนติงสาอภินวปุรีสรีคุรุรัฎฐพระนครเชียงใหม่; rtgs: Rattana Tingsa Aphi Nawa Puri Si Khuru Rattha Phra Nakhon Chiang Mai) was the vassal state of the Siamese Rattanakosin Kingdom in the 18th and 19th century before being annexed according to the centralization policies of Chulalongkorn in 1899. The kingdom was a successor of the medieval Lanna kingdom, which had been under Burmese rule for two centuries until it was captured by Siamese forces under Taksin of Thonburi in 1774. It was ruled by the Tipchak dynasty and came under Thonburi and was later a Bangkokian tributary.