The traditional list of the ancient Yarlung dynasty's Tibetan kings consists of 42 names.
[1] The earliest kings ruled before the Tibetan language was developed in the 7th century, and the verbal history of Tibet was thus written after their periods of rule.
While there is a lack of contemporaneous biographical manuscripts detailing the lives of the first 26 kings, modern scholars note that the lives of the 27th king to the 32nd were better documented.
A unified Tibetan state is documented during the times of the kings number 31, 32, and 33.
[3] Traditional Tibetan titles for the king include tsenpo ("Chief") and lhase ("Divine Son").