Ratchasakun ( th, ราชสกุล) refers to the surnames indicating royal descent from a Thai monarch of the
Chakri Dynasty
The Chakri dynasty ( th, ราชวงศ์ จักรี, , , ) is the current reigning dynasty of the Kingdom of Thailand, the head of the house is the king, who is head of state. The family has ruled Thailand since the founding of t ...
, first established in 1912 after
King Rama VI
Vajiravudh ( th, วชิราวุธ, , 1 January 188126 November 1925) was the sixth monarch of Siam under the Chakri dynasty as Rama VI. He ruled from 23 October 1910 until his death in 1925. King Vajiravudh is best known for his efforts ...
enacted a series of laws granting surnames to the Thai people, with the laws expressly stating that all Thai citizens must have a "
surname
In some cultures, a surname, family name, or last name is the portion of one's personal name that indicates one's family, tribe or community.
Practices vary by culture. The family name may be placed at either the start of a person's full name ...
" indicating who they are related to, or whom they are descended from, with those who are direct members of the royal bloodlines to be called ''ratchasakun'', those who have marital ties to the royal family to be referred to as ''ratchanikun'' (ราชนิกุล), and those descended from a Chakri
Front Palace to be called ''bowon ratchasakun'' (บวรราชสกุล).
Ratchatrakul
Ratchatrakul (ราชตระกูล) are the royal houses which are descended directly from the siblings of
King Rama I
Phra Phutthayotfa Chulalok Maharaj (, 20 March 1737 – 7 September 1809), personal name Thongduang (), also known as Rama I, was the founder of the Rattanakosin Kingdom and the first monarch of the reigning Chakri dynasty of Siam (now Thai ...
.
Ratchasakun
Ratchasakun (ราชสกุล) refers to those who are directly descended from a Thai monarch. This refers to those not of the immediate royal family, meaning those of the rank of Serene Highness (Mom Chao) or below. Untitled ratchasakun or spouses of ratchasakun shall take the suffix of Na Ayudhya (modern alternatives: Na Ayudhaya/Na Ayutthaya) behind the surname as well, to signify royal heritage.
Royal Houses descended from Rama I
Royal Houses descended from Rama II
Royal Houses descended from Rama III
Royal Houses descended from Rama IV
*Order column derived from the original numerical order taken by
Rama VI
Vajiravudh ( th, วชิราวุธ, , 1 January 188126 November 1925) was the sixth monarch of Siam under the Chakri dynasty as Rama VI. He ruled from 23 October 1910 until his death in 1925. King Vajiravudh is best known for his efforts ...
when granting surnames. Some were omitted from the original count by the king:
Kritākara: Not counted in Rama VI's specific order, granted as the 721st surname.
Gaganānga: No surviving male descendants at the time of granting.
Navavongsa: Not counted by Rama VI in his specific order, but granted as the 226th surname.
Supratishtha: Not counted by Rama VI in his specific order, granted as the 1403rd surname.
Royal Houses descended from Rama V
Royal Houses descended from Rama VII
Sources
This is a direct translation of the Thai language Wikipedia page.
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References
{{Reflist
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Thai monarchy
Chakri dynasty