Launch app →

Southeast Asia · Konbaung, Chakri and the colonial century

Thonburi Kingdom

Kingdom (mandala kingdom; reunified Siam) · 1767–1782

When Burma destroyed Ayutthaya in April 1767, Siam shattered into five rival regimes. Phraya Tak — personal name Sin, of Teochew Chinese descent (Zheng Zhao/Zheng Xin) — broke out of the doomed capital with 500 followers, seized Chanthaburi, and in November 1767 destroyed the Burmese garrison at Phosamton.

See it on the map → Wikipedia ↗
Type
Kingdom (mandala kingdom; reunified Siam)
Existed
1767–1782
Shown on the map
1769–1782
Peak area
365k km² (dataset)
Region
Southeast Asia

Origins & foundation

When Burma destroyed Ayutthaya in April 1767, Siam shattered into five rival regimes. Phraya Tak — personal name Sin, of Teochew Chinese descent (Zheng Zhao/Zheng Xin) — broke out of the doomed capital with 500 followers, seized Chanthaburi, and in November 1767 destroyed the Burmese garrison at Phosamton. He founded a new capital at Thonburi on the west bank of the Chao Phraya and was crowned king on 28 December 1767, becoming known as King Taksin.

Political history & notable rulers

Taksin systematically eliminated the rival warlord regimes: Phimai (1768), Nakhon Si Thammarat (1769), and Phitsanulok and the theocratic Sawangkhaburi regime (1770), reunifying Siam within three years. He invaded Cambodia and seized the port of Hà Tiên (1771–73) to extinguish Ayutthayan royal pretenders and secure Qing recognition — granted in 1777. In 1774–75 his generals, the brothers Chao Phraya Chakri and Chao Phraya Surasi, took Chiang Mai, ending 200 years of Burmese rule in Lanna. Taksin then survived the greatest crisis of the reign: Maha Thiha Thura's invasion of 1775–76, which took and burned Phitsanulok and came close to destroying Siam a second time, collapsing only when King Hsinbyushin died. In 1778–79 Chakri conquered Laos: Vientiane was sacked, the Emerald Buddha and Phra Bang images were taken to Wat Arun, and all three Lao kingdoms (Luang Phrabang, Vientiane, Champasak) became Siamese tributaries.

Economy, culture & religion

The post-1767 economy was in crisis — famine, soaring rice prices, manpower shortage. Taksin, himself from a merchant family, leveraged the Sino-Siamese trade: he employed royal Chinese merchants (the chin luang) trading at Guangzhou, encouraged Teochew immigration, and bought and resold imports for royal revenue; rice, imported via Hà Tiên, was distributed to the starving. In 1773 he introduced conscription tattooing (sak lek) to control manpower, and deported tens of thousands of Cambodians (1773) and Lao (1779) to repopulate Central Siam. Theravada Buddhism was dominant, with Christian and Muslim minorities; Taksin persecuted French missionaries late in the reign.

Peak & territorial extent

By 1780–82 Thonburi's sphere was the largest Siam had yet attained (365,000 km² in the dataset): direct rule over Central and lower Northern Siam, with nine more-or-less autonomous tributaries — Nakhon Si Thammarat, the Lanna principalities (Chiang Mai, Lampang, Nan, Lamphun, Phrae) and the three Lao kingdoms, plus influence in Cambodia. The Malay sultanates sent bunga mas in 1769, but real control there was doubtful.

Decline & end

After 1776 Taksin withdrew into religious obsession, declared himself a sotapanna (Buddhist saint), flogged monks who refused to bow to him, and alienated the court and Chinese merchants. In March 1782 a rebellion under Phraya San seized Thonburi; Chao Phraya Chakri returned from Cambodia, suppressed the revolt, and had Taksin tried and executed on 1 April 1782. Chakri ascended the throne as Rama I, founding the Chakri dynasty and the Rattanakosin Kingdom.

Legacy & modern connections

Taksin is honoured in Thailand as "Taksin the Great", the restorer of Siamese independence; the Emerald Buddha he captured remains Thailand's palladium (moved to Bangkok in 1784), and Thonburi's deportee communities shaped the demography of Central Siam. Modern Bangkok's Thonburi district preserves his palace (Wang Derm) and Wat Arun.

Common questions

What was the Thonburi Kingdom?
When Burma destroyed Ayutthaya in April 1767, Siam shattered into five rival regimes. Phraya Tak — personal name Sin, of Teochew Chinese descent (Zheng Zhao/Zheng Xin) — broke out of the doomed capital with 500 followers, seized Chanthaburi, and in November 1767 destroyed the Burmese garrison at Phosamton.
When did the Thonburi Kingdom exist?
The Thonburi Kingdom existed 1767–1782. On this map it is drawn 1769–1782.
How large was the Thonburi Kingdom at its height?
By 1780–82 Thonburi's sphere was the largest Siam had yet attained (365,000 km² in the dataset): direct rule over Central and lower Northern Siam, with nine more-or-less autonomous tributaries — Nakhon Si Thammarat, the Lanna principalities (Chiang Mai, Lampang, Nan, Lamphun, Phrae) and the three Lao kingdoms, plus influence in Cambodia. The Malay sultanates sent bunga mas in 1769, but real control there was doubtful.
Who ruled the Thonburi Kingdom?
Taksin systematically eliminated the rival warlord regimes: Phimai (1768), Nakhon Si Thammarat (1769), and Phitsanulok and the theocratic Sawangkhaburi regime (1770), reunifying Siam within three years. He invaded Cambodia and seized the port of Hà Tiên (1771–73) to extinguish Ayutthayan royal pretenders and secure Qing recognition — granted in 1777.
How did the Thonburi Kingdom end?
After 1776 Taksin withdrew into religious obsession, declared himself a sotapanna (Buddhist saint), flogged monks who refused to bow to him, and alienated the court and Chinese merchants. In March 1782 a rebellion under Phraya San seized Thonburi; Chao Phraya Chakri returned from Cambodia, suppressed the revolt, and had Taksin tried and executed on 1 April 1782.
What did the economy and culture of the Thonburi Kingdom rest on?
The post-1767 economy was in crisis — famine, soaring rice prices, manpower shortage. Taksin, himself from a merchant family, leveraged the Sino-Siamese trade: he employed royal Chinese merchants (the chin luang) trading at Guangzhou, encouraged Teochew immigration, and bought and resold imports for royal revenue; rice, imported via Hà Tiên, was distributed to the starving.
Why does the Thonburi Kingdom still matter?
Taksin is honoured in Thailand as "Taksin the Great", the restorer of Siamese independence; the Emerald Buddha he captured remains Thailand's palladium (moved to Bangkok in 1784), and Thonburi's deportee communities shaped the demography of Central Siam. Modern Bangkok's Thonburi district preserves his palace (Wang Derm) and Wat Arun.

Sources

Every source below was consulted while writing this entry.

This entry was written from the sources above and last updated .

This entry was researched and drafted with AI from the sources above, and has not been reviewed by a historian. How entries are made

Text available under CC BY-SA 4.0: reuse it with a credit to The World Through Time and a link to this page. Passages drawing on the Wikipedia articles listed above are also licensed CC BY-SA 4.0 by their contributors.

Border geometry for the map itself comes from Cliopatria v0.12 (Seshat Global History Databank, CC-BY-4.0).

Around the same time

See the Thonburi Kingdom in its world

Open the atlas at 1776 and every neighbour, rival and successor is on screen with it — then drag the slider and watch what happens next.

Open the map at 1776 →