Yarlung dynasty

The Yarlung dynasty (Tibetan: བོད་ཀྱི་གདོད་མའི་མངའ་མཛད།;, is a Tibetan dynasty of 42 kings, dating from 127 BCE to 842 CE. This dynasty gave rise to the Tibetan Empire period from 614 CE to 848 CE, credited to the 33rd king Songtsen Gampo, and lasting through to the 40th king Rapalchen. Rapalchen was murdered in 838 by his brother, the future 41st king Ü Dum Tsen, who in turn ruled for only one year (841-842) until his own murder. The dissolution of the empire occurred by 848.

The early Yarlung dynasty chiefs and kings lived before the Tibetan language was created, and their reigns and lives were documented through the lineage of verbal history until c. 650 when in the reign of the 33rd king of the Yarlung Dynasty Songtsen Gampo, the Tibetan alphabet and grammar were created and the royal record keeping of people and events called the Chronicle of Ba began. While some scholars feel unsure of the definitive existence due to the lack of written records before 650, the verbal lineage of Tibetan history is considered definitive for most scholars.