From Wikipedia, the free encyclopedia
Jump to: navigation, search
Princess Maha Chakri
Princess Sirindhorn 2009-12-7 Royal Thai Government House 2 (Cropped).jpg
Princess Sirindhorn in 2009
House House of Mahidol
Chakri Dynasty
Father King Bhumibol Adulyadej (Rama IX)
Mother Queen Sirikit
Born (1955-04-02) April 2, 1955 (age 59)
Bangkok, Thailand
Religion Buddhism

Princess Maha Chakri Sirindhorn[1] (Thai: มหาจักรีสิรินธร, Thai pronunciation: [má.hǎː .ʨàk.krīː.sì.rīn.tʰɔːn]; RTGS: Maha Chakkri Sirinthon; born April 2, 1955) is the second daughter of King Bhumibol Adulyadej.

Her full ceremonial title is “Somdet Phra Theppharatratsuda Chao Fa Maha Chakri Sirindhorn Ratthasimakhunakonpiyachat Sayamborommaratchakumari”[2] (สมเด็จพระเทพรัตนราชสุดา เจ้าฟ้ามหาจักรีสิรินธร รัฐสีมาคุณากรปิยชาติ สยามบรมราชกุมารี), which was bestowned upon her on December 5, 1977. Thais commonly refer to her by reducing such title to “Phra Thep”, meaning “princess angel”.

Her title in Thai is the female equivalent of the title held by her brother, Crown Prince Maha Vajiralongkorn.[3] The Thai constitution was altered in 1974 to allow for female succession, thus making her eligible for the throne.[4] As the eldest female child of the royal family (excluding Ubol Ratana, who married a foreign commoner), her position is equivalent to a princess royal.[5]


Sirindhorn born April 2, 1955 is the third child of King Bhumibol and Queen Sirikit. Because the royal couple has only one son, the Thai constitution was altered in 1974 to allow for female succession. This made Sirindhorn second-in-line to the throne (after Vajiralongkorn) until the birth of Princess Bajrakitiyabha in 1978. Air Chief Marshall Siddhi Savetsila, a member of the privy council, told a former U.S. ambassador in early 2010 that Sirindhorn could be named successor in the event of Vajiralongkorn's death, i.e. the crown prince's children, including Prince Dipangkorn, might be passed over.[6] The privy council will submit the name of a successor when the throne becomes vacant.[7]

In December 2012, Sirindhorn was briefly hospitalised to have calcium deposits removed from her chest. [8]


Sirindhorn attended kindergarten to upper secondary levels at Chitralada School. She ranked first in the National School Examinations in the primary level (grade 7) in 1967, first in upper secondary level (grade 12) in 1972 and fourth in the National University Entrance Examination.

She obtained a Bachelor of Arts in History (First Class Honor, Gold Medal) from Chulalongkorn University in 1976, and a Master of Arts in Oriental Epigraphy (Sanskrit and Cambodian) from Silpakorn University in 1978 with the thesis entitled 'The Inscriptions Found at Prasad Bnam Run (Prasat Phnom Rung)'. She also obtained a Master of Arts in Pali and Sanskrit from Chulalongkorn University in 1980 with the thesis entitled 'Dasapāramī in Theravada Buddhism'.

She was awarded a PhD in educational development from Srinakharinwirot University in 1986 with a thesis entitled 'Development of an Innovative Design for the Instruction of Thai Language at the Upper Secondary School Level'.

Works and interests[edit]

In Thailand, she is often referred to as the "Princess of Technology" or the "Princess of Information Technology", due to her interest and expertise in applying science for the country's development. Besides her passion for technology, she holds degrees in history and a doctorate in Educational Development. She also teaches at the History Department of the Chulachomklao Royal Military Academy, where she is the nominal head of the department.

In addition to Thai, the princess speaks fluent English, French and Chinese and is currently studying German and Latin. Sirindhorn has a very good background in Chinese culture, as well as other oriental cultures. In recent years she has paid many visits to China, both officially and privately, for her studies of the Chinese language and culture. An accomplished musician, she plays the trumpet and several Thai traditional instruments, including the ranat (xylophone) and saw duang.[9]

Titles and styles[edit]

Royal cypher of Princess Maha Chakri Sirindhorn
Styles of
Princess Maha Chakri Sirindhorn of Thailand
Female Royalty's Standard of Thailand.svg
Reference style Her Royal Highness
Spoken style Your Royal Highness
Alternative style Ma'am
  • April 2, 1955 – December 5, 1977: Her Royal Highness Princess Sirindhorn Debaratanasuda
  • December 5, 1977 – : Her Royal Highness Princess Maha Chakri Sirindhorn

The Princess's style and title in full: Somdech Phra Debaratanarajasuda Chao Fa Maha Chakri Sirindhorn Rathasimagunakornpiyajat Sayamboromrajakumari (สมเด็จพระเทพรัตนราชสุดา เจ้าฟ้ามหาจักรีสิรินธร รัฐสีมาคุณากรปิยชาติ สยามบรมราชกุมารี; RTGS: Somdet Phra Theppha Rat Ratcha Suda, Chao Fa Maha Chakkri Sirinthon, Ratta Sima Khunakon Piya Chat, Sayam Boromma Ratcha Kumari). The title Sayam Boromma Ratcha Kumari is equivalent to the British title of The Princess Royal.[citation needed]

Thai Royal Decorations[edit]

Foreign Decorations[edit]


External links[edit]


  1. ^ "Biography of Her Royal Highness Princess Maha Chakri Sirindhorn"
  2. ^ Royal Institute of Thailand, "Pronunciation of Sirindhorn's name", 2001-02
  3. ^ Backman, Michael, "Thai riches hinged on wise king's prodigal son" The Age, June 28, 2006.
  4. ^ Kershaw, Roger (2001), Monarchy in South East Asia: The faces of tradition in transition, Routledge, p. 153 
  5. ^ McCargo, Duncan (2010), "Thailand", Regional Oulook: Southeast Asia 2010-2011 (Institute of Southeast Asian Studies): 55 
  6. ^ Watkins, Mary, "P00144feabdc0.html#ixzz18VY4x1YT Cables breach taboo on Thai royal family" Financial Times, December 16, 2010.
  7. ^ Constitution of the Kingdom of Thailand, Chapter2: Section 23 (Succession)
  8. ^ "Princess Sirindhorn leaves hospital". Bangkok Post. 
  9. ^ Her Royal Highness Princess Maha Chakri Sirindhorn and Thai Classical Music
  10. ^
  11. ^ Boletín Oficial del Estado
  12. ^ "Reply to a parliamentary question about the Decoration of Honour" (pdf) (in German). p. 1124. Retrieved November 2012. 
  13. ^
Born: April 2 1955
Thai royalty
Preceded by
Sirivannavari Nariratana
Line of succession to the Thai throne
5th position
Succeeded by
Chulabhorn Walailak
Order of precedence
Preceded by
The Crown Prince
The Princess Royal
4th position
Succeeded by
Chulabhorn Walailak