 This law which continues to provide the framework for succession today, confirmed the primacy of the lineage of King Chulalongkorn and Queen Saovabha, as well as the king's sole and authentic right to choose his successor.It also made the determination of succession as legally precise and binding as possible.In the first section, King Vajiravudh states that ""according to royal tradition, Siamese Kings have the sole power and prerogative to designate any descendant of the royal family as heir to the throne"".