Thai Royal and Noble Titles - Descendants of A Sovereign

Descendants of A Sovereign

Generally speaking, a child of a holder of the following titles inherits the title which is one step below. However, the inheritance is on the male line only: a female Mom Rajawongse married to a plain commoner would produce a child with no title. (However, see Khun (courtesy title) below.) Tradition also requires that a princess asks for royal permission and surrenders her title if she wishes to marry a man of lesser title, e.g. if a female Chao Fa wishes to marry a male Mom Rajawongse. This happened in recent time to Chao Fa Ubolratana Rajakunya, the daughter of the current king, who had to give up her title of Chao Fa to marry a commoner (a US citizen). She still retains the style of "Tunkramom Ying", though. However, her sister, Chao Fa Chulabhonwalailak, was granted permission by the King to keep her title when she married Sqn. Ldr. Weerayut Disayasirin, a commoner.

The rules are also slightly complicated for the first two classes Chao Fa and Phra Ong Chao.