Taksin the Great (Thai: สมเด็จพระเจ้าตากสินมหาราช, RTGS: Somdet Phra Chao Taksin Maha Rat) or the King of Thonburi (Thai: สมเด็จพระเจ้ากรุงธนบุรี, RTGS: Somdet Phra Chao Krung Thon Buri; Chinese: 鄭信; pinyin: Zhèng Xin; Teochew: Dên Chao; Vietnamese: Trịnh Quốc Anh) was the only King of the Thonburi Kingdom and was of Thai Chinese heritage.
He was a leader in the liberation of Siam from Burmese occupation after the Second Fall of Ayutthaya in 1767, and the subsequent unification of Siam after it fell under various warlords. He established the city Thonburi as the new capital, as the city Ayutthaya had been almost completely destroyed by the invaders. His reign was characterized by numerous wars, fought to repel new Burmese invasions and to subjugate the northern Thai kingdom of Lanna, the Laotian principalities, and a threatening Cambodia. He was executed and succeeded by his long-time friend Maha Ksatriyaseuk who then assumed the throne, founding the Rattanakosin Kingdom and the Chakri dynasty, which rules Thailand to this day.
Although warfare took up most of King Taksin's time, he paid a great deal of attention to politics, administration, economy, and the welfare of the country. He promoted trade and fostered relations with foreign countries including China, Britain, and the Netherlands. He had roads built and canals dug. Apart from restoring and renovating temples, the king attempted to revive literature, and various branches of the arts such as drama, painting, architecture and handicrafts. He also issued regulations for the collection and arrangement of various texts to promote education and religious studies. In recognition for what he did for the Thais, he was later awarded the title of Maharaj (The Great).