Even though the institution is safe and secure, the individuals who occupy the position are not necessarily safe and secure. In the practice of the Thai- Lao ethnic group from the past, it is understood that the most important property for holding the office of king is the right derived from birth or from the combined bloodlines of royalty. Old Thai legends (tamnan), whether of the Black Thai, Luang Prabang, or Thai Yuan, all focus on a royal clan. The old Singhonawat (Singhanavati) legend 9 is about the Singhonawat clan. The Khun Borom legend 10 is about the Khun Borom clan. The Thai Yai, Thai Ahom, and Black Thai all have stories about the founder of the royal clan descending from the sky.