The
Old Tibetan Chronicle is a composite text of various lists, narratives and bardic songs arranged to form a single account of the reigns of the
Tibetan emperors. As the list of the Tibetan emperors found in the narrative ends with U Dumten ('U'i dum brtan), later known as
Langdarma, the
Chronicle must have been compiled during or soon after the reign of this emperor, that is, in the 840s.
Geza Uray has argued that this composition was made in
Dunhuang itself rather than Central Tibet. The Chronicle begins with a series of lists - of marriage alliances, principalities, emperors and ministers. The list of emperors is prefaced by an account of the descent of the first emperor
Nyatri Tsenpo (gNya'-khri bTsan-po) from heaven, and ends with an account of the death of
Drigum Tsenpo, the first mortal in the line. After this the Chronicle narrates the overthrow of the prince Zingpoje - this narrative is also represented in the fragmentary Version II of the Chronicle. The narrative then continues with an account of the following Tibetan emperors before coming to the reign of
Songtsen Gampo (r. c.605–649). This section actually concentrates on the activities of the minister
Khyungpo Pungse. The Chronicle then continues with a narrative of the following emperors, before coming to
Trisong Detsen (r. 756-c.800), in which his victory over the rival Tibetan king Lig Myi-rhya is celebrated. The Chronicle then returns to the reign of an earlier emperor
Tridu Songtsen (676–704), and his victory over a claim to rule Tibetan by the Gar clan. The Chronicle does not offer a comprehensive account of the history of Tibet. This is partly because of the nature of its composition from earlier narratives and songs. It has also been argued by Lajos Ligeti and
Geza Uray that the material in the Chronicle represents the interests of specific Tibetan clans, namely the Dba' and Myang clans (Ligeti adds the Mnon and Tshe-spong clans as well). In this it is comparable to another early Tibetan historical text, the
Testament of Ba, which represents the interests of the Dba' clan. Contradicting later Tibetan Buddhist histories, neither the
Annals nor the
Chronicle make any mention of
Buddhism in the reign of
Songtsen Gampo. However, the
Chronicle does say that, during the reign of king
Trisong Detsen (Khri srong lde brtsan- ruled from 755 to 797 or 804 CE), "The incomparable religion of the Buddha had been received and there were
viharas (monasteries) in the centre as well as the borderlands of the country." ==Problems with chronology==