Thai royal and noble titles

Thai royal and noble titles are the royal and noble styles signifying relationship to the King introduced by King Trailokanat, who reigned 1448 to 1488. The system is rooted in the Thai language equivalent of feudalism, Sakdina (ศักดินา: literally, power over fields). It is somewhat similar to that of peerage, but is complicated and usually not well understood even by most Thais. A particular title of honor may not be confined to just the beginning or the end of the name, but may be split across the name as will be demonstrated. Those who possessed titles ceased to be designated by personal names and were never spoken of except by the awarded or other similar titles. Another point about the titles is that the King has the power to bestow any title on anybody, regardless of the rule. However, such promotion is personal and the children of the person will not normally benefit from it (see, for example, Phra Worawong Ther Phra Ong Chao).

The King (Sovereign)

There are two styles which can be used for a king in ordinary speech, depending on whether or not he has been crowned: