List of monarchs of Thailand

The Royal Standard of the King of Thailand. The Garuda in the middle has been the symbol of the monarchy since the times of Ayutthaya.

Kingdom of Sukhothai

Phra Ruang dynasty (1238–1368, 1368–1438)

Portrait	Name	Birth	Reign from	Reign until	Death	Relationship with predecessor(s)
	Pho Khun Sri Indraditya (Pho Khun Bang Klang Hao)	1188	1238	1279 (41 years)		• First King of Sukhothai
	Pho Khun Ban Mueang	?	1279 (1 year)			• Son of Sri Indraditya
	Pho Khun Ram Khamhaeng the Great (Pho Khun Ram Racha)	c. 1237-1247	1279	1298 (19 years)		• Younger brother of Ban Muang  • Son of Sri Indraditya
	Phaya Loethai	?	1298	1323 (25 years)		• Son of Ram Khamhaeng
	Phaya Nguanamthom	?	1323	1347 (24 years)		• Cousin of Lerthai  • Son of Ban Muang
	Phaya Lithai (Phra Maha Thammaracha I)	?	1347	1368 (21 years)		• Cousin of Nguanamthom  • Son of Lerthai
Under the suzerainty of the Kingdom of Ayutthaya
	Phaya Lue Thai (Phra Maha Thammaracha II)	?	1368	1399 (31 years)		• Son of Lithai
	Phaya Saileuthai (Phra Maha Thammaracha III)	?	1400	1419 (19 years)		• Son of Leuthai
	Phaya Borommapan (Phra Maha Thammaracha IV)	?	1419	1438 (19 years)		• Son of Saileuthai

Kingdom of Ayutthaya

1st Uthong dynasty (1350–1370)

Portrait	Name	Birth	Reign from	Reign until	Death	Relationship with predecessor(s)
	Somdet Phra Chao Uthong (Somdet Phra Ramathibodi I)	1314	1350	1369 (20 years)		• First King of Ayutthaya
	Somdet Phra Ramesuan (First Reign)	1339	1369	1370 (less than one year) (abdicated)	1395	• Son of Uthong

1st Suphannaphum dynasty (1370–1388)

Portrait	Name	Birth	Reign from	Reign until	Death	Relationship with predecessor(s)
	Somdet Phra Borommarachathirat I (Khun Luang Pha Ngua)	?	1370	1388 (18 years)		• Husband of Uthong's older sister  • Usurper  • Former Lord of Suphanburi
	Somdet Phra Chao Thong Lan (Chao Thong Chan)	?	1388 (7 days) (usurped)			• Son of Borommarachathirat I

2nd Uthong dynasty (1388–1409)

Portrait	Name	Birth	Reign from	Reign until	Death	Relationship with predecessor(s)
	Somdet Phra Ramesuan (Second Reign)	1339	1388	1395 (7 years)		• Former King reclaiming the throne  • Son of Uthong
	Somdet Phra Rama Ratchathirat	1356	1395	1409 (14 years) (usurped)	?	• Son of Ramesuan

2nd Suphannaphum dynasty (1409–1569)

Portrait	Name	Birth	Reign from	Reign until	Death	Relationship with predecessor(s)
	Somdet Phra Intha Racha I (Phra Chao Nakhon In)	1359	1409	1424 (15 years)		• Nephew of Borommarachathirat I  • Former Lord of Suphanburi, offered crown
	Somdet Phra Borommarachathirat II (Chao Sam Phraya)	?	1424	1448 (24 years)		• Son of Intha Racha I
	Somdet Phra Boromma Trailokanat	1431	1448	1488 (40 years)		• Son of Borommarachathirat II
	Somdet Phra Borommarachathirat III (Intha Racha II)	?	1488	1491 (3 years)		• Son of Trailokanat
	Somdet Phra Ramathibodi II (Phra Chetthathirat I)	1473	1491	1529 (38 years)		• Younger brother of Borommarachathirat III  • Son of Trailokanat
	Somdet Phra Borommarachathirat IV (Somdet Phra Borommaracha Nor Buddhankoon) (Phra Athitawongse)	?	1529	1533 (4 years)		• Son of Ramathibodi II
	Phra Ratsadathirat	1529	1533 (4 months) (usurped)			• Son of Borommarachathirat IV  • Child King, reign under regency
	Somdet Phra Chairacha (Somdet Phra Chairacha Thirat) (Phra Chai)	?	1533	1546 (13 years)		• Uncle of Ratsadathirat  • Son of Ramathibodi II  • Usurper
	Phra Yodfa (Phra Keowfa)	1535	1546	1548 (2 years)		• Son of Chairacha
	Khun Worawongsathirat (Khun Chinnarat) (Bun Si)	?	11 November 1548 (42 days) (Removed)			• Usurper monarch, not accepted by some historians
	Somdet Phra Maha Chakkraphat (Phra Chao Chang Pueak)	1509	1548	1564 (16 years)		• Son of Ramathibodi II  • Younger brother of Borommarachathirat IV and Chairacha  • Seized the throne from usurper  • Became a monk at Pegu (1564–1568)
Vassal of Burma (1564–1568)
	Somdet Phra Mahinthrathirat	1539	1564	1569 (4 years as vassal king, 1 year as king)		• Son of Maha Chakkrapat and Queen Suriyothai
Vassal of Burma (1569–1584)

Sukhothai dynasty (1569–1629)

Portrait	Name	Birth	Reign from	Reign until	Death	Relationship with predecessor(s)
	Somdet Phra Maha Thammarachathirat (Somdet Phra Sanphet I)	1517	1569	29 July 1590 (21 years)		• Former Lord of Phitsanulok  • Installed as vassal of Bayinnaung of Burma, declared independence in 1584
	Somdet Phra Naresuan the Great (Somdet Phra Sanphet II) (Phra Naret)	25 April 1555	29 July 1590	7 April 1605 (15 years)		• Son of Maha Thammarachathirat
	Somdet Phra Ekathotsarot (Somdet Phra Sanphet III)	1557	25 April 1605	1620 (15 years)		• Brother of Naresuan  • Son of Maha Thammarachathirat
	Somdet Phra Si Saowaphak (Somdet Phra Sanphet IV)	?	1620 (less than a year, murdered)			• Son of Ekathotsarot
	Somdet Phra Songtham (Somdet Phra Borommaracha I)	1590	1620	12 December 1628 (8 years)		• Son of "Ekathotsarot", invited to take the throne after leaving the Sangha
	Somdet Phra Chetthathirat II (Somdet Phra Borommaracha II)	c. 1613	1628	1628–1629 (1 year and 7 months) (assassinated)		• Son of Songtham
	Phra Athittayawong	1618	1629 (36 days) (usurped)			• Younger brother of Chetthathirat II  • Son of Songtham

Prasat Thong dynasty (1630–1688)

Portrait	Name	Birth	Reign from	Reign until	Death	Relationship with predecessor(s)
	Somdet Phra Chao Prasat Thong (Somdet Phra Sanphet V)	1599	1629	1656 (27 years)		• Usurper, formerly the Kalahom  • Rumored to be a son of Ekathotsarot
	Somdet Chao Fa Chai (Somdet Phra Sanphet VI)	?	1656 (9 months) (usurped)			• Son of Prasat Thong
	Somdet Phra Si Suthammaracha (Somdet Phra Sanphet VII)	?	June 1656	26 October 1656 (2 months 17 Days) (usurped)		• Usurper, Uncle of Chao Fa Chai  • Younger brother of Prasat Thong
	Somdet Phra Narai the Great (Somdet Phra Ramathibodi III)	16 February 1633	26 October 1656	11 July 1688 (32 years)		• Usurper, nephew of Si Suthammaracha  • Son of Prasat Thong  • Half-brother of Chao Fa Chai

Ban Phlu Luang dynasty (1688–1767)

Portrait	Name	Birth	Reign from	Reign until	Death	Relationship with predecessor(s)
	Somdet Phra Phetracha	1632	1688	1703 (15 years)		• Usurper, cousin of Narai  • Former commander of the Royal Elephant Corps
	Somdet Phra Suriyenthrathibodi (Somdet Phra Sanphet VIII) (Phra Chao Suea)	?	1703	1709 (7 years)		• Rumored to be a son of Narai
	Somdet Phra Chao Yu Hua Thai Sa (Somdet Phra Sanphet IX)	?	1709	1733 (24 years)		• Son of Suriyenthrathibodi
	Somdet Phra Chao Yu Hua Boromakot	1680	1733	1758 (26 years)		• Brother of Thai Sa, Former Front Palace  • Son of Suriyenthrathibodi
	Somdet Phra Chao Uthumphon (Somdet Phra Ramathibodi IV) (Khun Luang Hawat)	?	1758 (2 months) (usurped)		1796	• Son of Boromakot
	Somdet Phra Chao Ekkathat (Somdet Phra Chao Yu Hua Phra Thinang Suriyat Amarin) (Somdet Phra Borommaracha III)	?	1758	7 April 1767 (9 years) (removed)	17 April 1767	• Brother of Uthumphon  • Usurper, Former Front Palace  • Son of Boromakot
Second Fall of Ayutthaya

Kingdom of Thonburi

Thonburi dynasty (1768–1782)

Portrait	Name	Birth	Reign from	Coronation	Reign until	Death	Relationship with predecessor(s)
	Somdet Phra Chao Taksin the Great (Phra Chao Krung Thonburi) (Somdet Phra Borommaracha IV)	17 April 1734	6 November 1767	28 December 1768	6 April 1782 (14 years) (removed)	7 April 1782 (47 years old) (executed)	• Only King of Thonburi

Kingdom of Rattanakosin, Siam (Thailand)

Chakri dynasty (1782–present)

Portrait	Name	Birth	Reign from	Coronation	Reign until	Death	Relationship with predecessor(s)
	Phrabat Somdet Phra Buddha Yodfa Chulaloke the Great (Rama I)	20 March 1737	6 April 1782	10 June 1782	7 September 1809 (27 years) (72 years old)		• First King of Rattanakosin
	Phrabat Somdet Phra Buddha Loetla Nabhalai (Rama II)	24 February 1767	7 September 1809		21 July 1824 (14 years) (57 years old)		• Son of Rama I and Queen Amarindra
	Phrabat Somdet Phra Paramintharamaha Jessadabodindra Phra Nang Klao Chao Yu Hua (Rama III) (Phra Maha Chetsadarat Chao)	31 March 1788	21 July 1824		2 April 1851 (26 years) (63 years old)		• Son of Rama II and Princess Consort Sri Sulalai
	Phrabat Somdet Phra Paramentharamaha Mongkut Phra Chom Klao Chao Yu Hua (Rama IV)	18 October 1804	2 April 1851	6 April 1851	1 October 1868 (17 years) (63 years old)		• Half-brother of Rama III  • Son of Rama II and Queen Sri Suriyendra
	Phrabat Somdet Phra Paramintharamaha Chulalongkorn the Great Phra Chunla Chom Klao Chao Yu Hua (Rama V) (Phra Piya Maharat)	20 September 1853	1 October 1868	11 November 1868 (1st time) 16 November 1873 (2nd time)	23 October 1910 (42 years) (57 years old)		• Son of Rama IV and Queen Debsirindra  • Under Regency of Si Suriyawongse from 1868–1873
	Phrabat Somdet Phra Paramentharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua (Rama VI) (Phra Maha Thirarachachao)	1 January 1881	23 October 1910	11 November 1911	25 November 1925 (15 years) (44 years old)		• Son of Rama V and Queen Saovabha Bongsri
	Phrabat Somdet Phra Paramintharamaha Prajadhipok Phra Pok Klao Chao Yu Hua (Rama VII)	8 November 1893	25 November 1925	25 February 1926	2 March 1935 (9 years) (abdicated)	30 May 1941 (47 years old)	• Younger brother of Rama VI  • Son of Rama V and Queen Saovabha Bongsri
	Phrabat Somdet Phra Paramentharamaha Ananda Mahidol Phra Atthama Ramathibodin (Rama VIII)	20 September 1925	2 March 1935	—	9 June 1946 (11 years) (20 years old)		• Nephew of Rama VII  • Grandson of Rama V by Mahidol Adulyadej  • Under Regency from 1935–1946
	Phrabat Somdet Phra Paramintharamaha Bhumibol Adulyadej the Great (Rama IX) (Somdet Phra Phatthara Maharat)	5 December 1927	9 June 1946	5 May 1950	Present (69 years) (88 years old)		• Younger brother of Rama VIII  • Grandson of Rama V by Mahidol Adulyadej

See also

• Complete List of Thai Kings, including Lana
• Monarchy of Thailand
• Kings of Lanna
• List of Thai royal consorts
• Rama (King of Thailand)
• Chakri dynasty

Bibliography

• Prince Chula Chakrabongse, HRH (1967). Lords of Life: A History of the Kings of Thailand. United Kingdom: Alvin Redman Limited.
• Prince Damrong Rajanubhab, Disuankumaan; (Translated by Baker, Chris) (2001). Our Wars With The Burmese: Thai-Burmese Conflict 1539-1767. Thailand: White Lotus Co. Ltd. ISBN 974-7534-58-4. Cite uses deprecated parameter |coauthors= (help)
• Princess Maha Chakri Sirindhorn Foundation (2011). [นามานุกรมพระมหากษัตริย์ไทย: Directory of Thai kings (Thai)] Check |url= value (help) (PDF). Thailand: www.nanmeebooks.com. ISBN 978-616-7308-25-8. Retrieved 8 January 2012.
• Royal Institute of Thailand (2002). "Chronology of the Kings of Ayutthaya". Retrieved 8 January 2012.
• Wood, William A. R. (1924). History of Siam. Thailand: Chalermit Press. ISBN 1-931541-10-8.