The Siamese Royalty

ROYAL TITLES SIMPLIFIED

Generation 1

KING

(FATHER)
Wife of 1 +Royal wife (Queen)
Somdetch Pra
Mother
 +Non-royal wife
Chao Chom
Gen 2 Chao Fa
(HRH Prince/Princess)
Son
 Pra Ong Chao
(HRH Prince/Princess)
Gen 2 + wife Chao Fa
+Royal wife		 Chao Fa
+Non-royal wife (Mom)
Son
+ Daughter-in-law
 Pra Ong Chao
+Non-royal wife (Mom)		 Pra Ong Chao
+Royal wife
Gen 3 Pra Ong Chao
(HH Prince/Princess)		 Mom Chao - M.C.
(HSH Prince/Princess)
Grandchild
 Mom Chao - M.C.
(HSH Prince/Princess)		 Pra Ong Chao
(HH Prince/Princess)
Gen 4 Mom Chao - M.C.
(HSH Prince/Princess)		 Mom Rajawongse - M.R.
Great-grandchild
 Mom Rajawongse - M.R. Mom Chao - M.C.
(HSH Prince/Princess)
Gen 5 Mom Rajawongse - M.R. Mom Luang - M.L.
Great-great-grandchild
 Mom Luang - M.L. Mom Rajawongse - M.R.
Gen 6+ Mom Luang - M.L. add Na Ayudhya to
surname
Great-great-great grandchild
add Na Ayudhya to
surname		 Mom Luang - M.L.
Gen 7+ add Na Ayudhya to
surname
add Na Ayudhya to
surname

Note: The title of Pra Ong Chao has been simplified in this example, as the title can be that of Pra Chao Vorawongse Ther Pra Ong Chao, or Pra Vorawongse Ther Pra Ong Chao, depending on the rankings of the parents.  It is also common to see a royal of lesser rank upgraded to one of the Pra Ong Chaos. 

 
1. HRH - His/Her Royal Highness
2. HH - His/Her Highness
3. HSH - His/Her Serene Highness
4. Mom - The title for non-royal wives of the Highnesses (1-3)
5. Mom Rajawongse (M.R.) and Mom Luang (M.L.) are considered non-royals, thus are not given Royal
    Highnesses.  These titles are also different to the title of Mom in 4.
*If 1-3 (female) marries a commoner, she must reliquish her royal title
 
Updated 5 October 2011