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Crown Prince of Thailand

Crown Prince of Thailand

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The Crown Prince of Thailand (or Siam
Siam (disambiguation)
Siam is an exonym that was used as the name of Thailand before 24 June 1939 and again from 8 September 1945 to 20 July 1949; see History of Thailand...

)
(: Sayammakutratchakuman) was a title held by the heir apparent
Heir apparent
An heir apparent or heiress apparent is a person who is first in line of succession and cannot be displaced from inheriting, except by a change in the rules of succession....

 to the Thai throne. First created by King Chulalongkorn
Chulalongkorn
Phra Bat Somdet Phra Poramintharamaha Chulalongkorn Phra Chunla Chom Klao Chao Yu Hua , or Rama V was the fifth monarch of Siam under the House of Chakri. He was known to the Siamese of his time as Phra Phuttha Chao Luang . He is considered one of the greatest kings of Siam...

 (Rama V) in 1886, for his son Prince Maha Vajirunhis
Vajirunhis
Crown Prince Maha Vajirunhis was the first Crown Prince of the Chakri Dynasty. He was the first son of King Chulalongkorn and Queen Savang Vadhana....

, the king's eldest son by a royal wife Princess Consort Savang Vadhana
Savang Vadhana
Queen Savang Vadhana of Siam was a consort of King Chulalongkorn or Rama V. Her full name and title was Queen Sri Savarindira - thus she was not the Rajini , but just was a highest consort...

. Prior to this the Siamese throne did not have a law or formal system regulating the royal succession. In 1688 King Petracha of Ayutthaya
Ayutthaya kingdom
Ayutthaya was a Siamese kingdom that existed from 1350 to 1767. Ayutthaya was friendly towards foreign traders, including the Chinese, Vietnamese , Indians, Japanese and Persians, and later the Portuguese, Spanish, Dutch and French, permitting them to set up villages outside the walls of the...

 created the title of Front Palace
Front Palace
Krom Phra Rajawang Bovorn Sathan Mongkol ) or the Front Palace was a royal title granted by the Siamese monarchy until the nineteenth century. The holder of the title of Front Palace was considered the heir to the throne and second only to the King. The title originated in the Ayutthaya period and...

, which by the Rattanakosin period had become the heir presumptive
Heir Presumptive
An heir presumptive or heiress presumptive is the person provisionally scheduled to inherit a throne, peerage, or other hereditary honour, but whose position can be displaced by the birth of an heir or heiress apparent or of a new heir presumptive with a better claim to the position in question...

 to the throne. However few Front Palaces have succeeded to the throne this way, with the exception of King Buddha Loetla Nabhalai
Buddha Loetla Nabhalai
Phra Bat Somdet Phra Poramenthramaha Isarasundhorn Phra Buddha Loetla Nabhalai , or Rama II , was the second monarch of Siam under the House of Chakri, ruling from 1809-1824. In 1809, Isarasundhorn succeeded his father Buddha Yodfa Chulaloke, the founder of Chakri dynasty, as Buddha Loetla Nabhalai...

 (Rama II) in 1809. After the Front Palace crisis
Front Palace crisis
The Front Palace crisis or the Front Palace incident was a political crisis that took place in the Kingdom of Siam from 28 December 1874 to 25 February 1875. The crisis was a power struggle between the reformist King Chulalongkorn and the conservative Prince Bovorn Vichaichan the Second King...

 in 1875, the title of Front Palace was abolished and replaced with the title of Crown Prince, who became heir apparent to the throne.

In 1924 King Vajiravudh
Vajiravudh
Phra Bat Somdet Phra Poramentharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Phra Bat Somdet Phra Ramathibodi Si Sintharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Rama VI was the sixth monarch of Siam under the House of Chakri, ruling from 1910 until his death...

 (Rama VI) promulgated the 1924 Palace Law of Succession
1924 Palace Law of Succession
The Palace Law on Succession, BE 2467 governs succession to the Throne of the Kingdom of Thailand, under the ruling House of Chakri. The law was established during the reign of King Vajiravudh to systematically resolve previous succession controversies...

 to regulate the succession, this law essentially barred females, children of commoner wives or children of foreign wives to the throne, it also re-affirmed Agnatic Primogeniture
Primogeniture
Primogeniture is the right, by law or custom, of the firstborn to inherit the entire estate, to the exclusion of younger siblings . Historically, the term implied male primogeniture, to the exclusion of females...

, or succession through the male-line by seniority. This law also affected the individuals who could become Crown Prince. Since its creation only three Princes have been raised to this title, so far only one has succeeded to the throne.

Crown Princes

Crown Princes of Thailand
Picture Name Relationship to monarch Mother Birth Receive title Ceased to be Crown Prince
Maha Vajirunhis
Vajirunhis
Crown Prince Maha Vajirunhis was the first Crown Prince of the Chakri Dynasty. He was the first son of King Chulalongkorn and Queen Savang Vadhana....

Eldest son of King Rama V
Chulalongkorn
Phra Bat Somdet Phra Poramintharamaha Chulalongkorn Phra Chunla Chom Klao Chao Yu Hua , or Rama V was the fifth monarch of Siam under the House of Chakri. He was known to the Siamese of his time as Phra Phuttha Chao Luang . He is considered one of the greatest kings of Siam...

Princess Consort Savang Vadhana
Savang Vadhana
Queen Savang Vadhana of Siam was a consort of King Chulalongkorn or Rama V. Her full name and title was Queen Sri Savarindira - thus she was not the Rajini , but just was a highest consort...

27 June 1878 14 January 1886 4 January 1895 (death)
Maha Vajiravudh
Vajiravudh
Phra Bat Somdet Phra Poramentharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Phra Bat Somdet Phra Ramathibodi Si Sintharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Rama VI was the sixth monarch of Siam under the House of Chakri, ruling from 1910 until his death...

 later King Rama VI
Eldest son of King Rama V Queen Saovabha Bongsri 1 January 1881 4 January 1895 23 October 1910 (ascension)
Maha Vajiralongkorn Eldest son of King Rama IX
Bhumibol Adulyadej
Bhumibol Adulyadej is the current King of Thailand. He is known as Rama IX...

Queen Sirikit
Sirikit
Somdet Phra Nang Chao Sirikit Phra Borommarachininat , is the queen consort of Bhumibol Adulyadej, King of Thailand. She is the second Queen Regent of Thailand...

28 July 1952 28 December 1972 incumbent

Heirs to the throne


List of heirs apparent and heirs presumptive since 1886, those in bold succeeded to the throne as King.
Heirs to the Thai Throne
Heir Status Relationship to monarch Became Heir Ceased to be Heir Next in line of succession
(Relation to heir)
Monarch
Date Reason Date Reason

Maha Vajirunhis
Vajirunhis
Crown Prince Maha Vajirunhis was the first Crown Prince of the Chakri Dynasty. He was the first son of King Chulalongkorn and Queen Savang Vadhana....

Crown Prince Eldest son 14 January 1886 New creation 4 January 1895 Died of typhoid, age 17 Prince Vajiravudh
Vajiravudh
Phra Bat Somdet Phra Poramentharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Phra Bat Somdet Phra Ramathibodi Si Sintharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Rama VI was the sixth monarch of Siam under the House of Chakri, ruling from 1910 until his death...

, 1886–1895, half-brother
Rama V
Chulalongkorn
Phra Bat Somdet Phra Poramintharamaha Chulalongkorn Phra Chunla Chom Klao Chao Yu Hua , or Rama V was the fifth monarch of Siam under the House of Chakri. He was known to the Siamese of his time as Phra Phuttha Chao Luang . He is considered one of the greatest kings of Siam...


Maha Vajiravudh
Vajiravudh
Phra Bat Somdet Phra Poramentharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Phra Bat Somdet Phra Ramathibodi Si Sintharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Rama VI was the sixth monarch of Siam under the House of Chakri, ruling from 1910 until his death...

Crown Prince Eldest son 4 January 1895 Dead of previous 23 October 1910 Father died, became king. Prince Chakrabongse, 1895–1910, brother

Chakrabongse Bhuvanadh
Prince Brother Brother 23 October 1910 Brother became king 13 June 1920 Died of pneumonia, age 37 Prince Asdang, 1910–1920, brother Rama VI
Vajiravudh
Phra Bat Somdet Phra Poramentharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Phra Bat Somdet Phra Ramathibodi Si Sintharamaha Vajiravudh Phra Mongkut Klao Chao Yu Hua , or Rama VI was the sixth monarch of Siam under the House of Chakri, ruling from 1910 until his death...


Asdang Dejavudh
Prince Brother Brother 13 June 1920 Death of previous 9 February 1924 Died of nephrosis, age 36 Prince Chudadhuj, 1910–1923, brother
Prince Prajadhipok
Prajadhipok
Phra Bat Somdet Phra Poramintharamaha Prajadhipok Phra Pok Klao Chao Yu Hua , or Rama VII was the seventh monarch of Siam under the House of Chakri. He was the last absolute monarch and the first constitutional monarch of the country. His reign was a turbulent time for Siam due to huge political...

, 1923-24, brother

Prajadhipok
Prajadhipok
Phra Bat Somdet Phra Poramintharamaha Prajadhipok Phra Pok Klao Chao Yu Hua , or Rama VII was the seventh monarch of Siam under the House of Chakri. He was the last absolute monarch and the first constitutional monarch of the country. His reign was a turbulent time for Siam due to huge political...

Prince Brother Brother 9 February 1924 Death of previous 25 November 1925 Brother died, became king Prince Mahidol
Mahidol Adulyadej
Mahitaladhibes Adulyadejvikrom, the Prince Father , or officially styled Mahidol Adulyadej, Prince of Songkla was the father of King Ananda Mahidol and King Bhumibol Adulyadej of Thailand. He was also regarded as the father of modern medicine and public health of Thailand...

, 1924-1925, half-brother

Mahidol Adulyadej
Mahidol Adulyadej
Mahitaladhibes Adulyadejvikrom, the Prince Father , or officially styled Mahidol Adulyadej, Prince of Songkla was the father of King Ananda Mahidol and King Bhumibol Adulyadej of Thailand. He was also regarded as the father of modern medicine and public health of Thailand...

Prince Brother Half-brother 25 November 1925 Half-brother became King 24 September 1929 Died of pneumonia, age 37 Ananda Mahidol
Ananda Mahidol
Ananda Mahidol was the eighth monarch of Thailand under the House of Chakri. At the time he was recognized as king by the National Assembly, in March 1935, he was a nine-year-old boy living in Switzerland. He returned to Thailand in December 1945. Six months later, in June 1946, he was found shot...

, 1925-1929, son
Rama VII
Prajadhipok
Phra Bat Somdet Phra Poramintharamaha Prajadhipok Phra Pok Klao Chao Yu Hua , or Rama VII was the seventh monarch of Siam under the House of Chakri. He was the last absolute monarch and the first constitutional monarch of the country. His reign was a turbulent time for Siam due to huge political...


Ananda Mahidol
Ananda Mahidol
Ananda Mahidol was the eighth monarch of Thailand under the House of Chakri. At the time he was recognized as king by the National Assembly, in March 1935, he was a nine-year-old boy living in Switzerland. He returned to Thailand in December 1945. Six months later, in June 1946, he was found shot...

Phra Ong Chao (1927) Nephew (son of Mahidol Adulyadej) 24 September 1929 Death of previous 2 March 1935 Abdication of uncle Bhumibol Adulyadej
Bhumibol Adulyadej
Bhumibol Adulyadej is the current King of Thailand. He is known as Rama IX...

, 1932-1935 brother

Bhumibol Adulyadej
Bhumibol Adulyadej
Bhumibol Adulyadej is the current King of Thailand. He is known as Rama IX...

Phra Ong Chao Prince Brother 2 March 1935 Brother became King 9 June 1946 Brother died, became King
none
Rama VIII
Ananda Mahidol
Ananda Mahidol was the eighth monarch of Thailand under the House of Chakri. At the time he was recognized as king by the National Assembly, in March 1935, he was a nine-year-old boy living in Switzerland. He returned to Thailand in December 1945. Six months later, in June 1946, he was found shot...


Maha Vajiralongkorn
Maha Vajiralongkorn
Somdet Phra Boromma-orasathirat Chao Fa Maha Vajiralongkorn Sayammakutratchakuman is the only son of Bhumibol Adulyadej, the King of Thailand, and Queen Sirikit...

Crown Prince (1972) Eldest and only Son 28 July 1952 Born
present
incumbent
Dipangkorn Rasmijoti
Dipangkorn Rasmijoti
Prince Dipangkorn Rasmijoti , a member of the Royal Family of Thailand, is a grandson of King Bhumibol Adulyadej of Thailand, and is the fifth son of Crown Prince Maha Vajiralongkorn. His mother is Princess Srirasmi, the Crown Prince's third legal wife...

, 2005- son
Rama IX
Bhumibol Adulyadej
Bhumibol Adulyadej is the current King of Thailand. He is known as Rama IX...


See also

  • 1924 Palace Law of Succession
    1924 Palace Law of Succession
    The Palace Law on Succession, BE 2467 governs succession to the Throne of the Kingdom of Thailand, under the ruling House of Chakri. The law was established during the reign of King Vajiravudh to systematically resolve previous succession controversies...

  • Monarchy of Thailand
  • List of Thai Monarchs
  • Chakri Dynasty