তিব্বত সাম্রাজ্যের সর্বশেষ সম্রাটের নাম কী ?
The Era of Fragmentation is a period of Tibetan history in the 9th and 10th century. During this era, the political centralization of the earlier Tibetan Empire collapsed. The period was dominated by rebellions against the remnants of imperial Tibet and the rise of regional warlords. Upon the death of Langdarma, the last emperor of a unified Tibetan empire, there was a controversy over whether he would be succeeded by his alleged heir Yumtän ("Yum brtan"), or by another son (or nephew) Ösung ("’Od-srung") (either 843–905 or 847–885). A civil war ensued, which effectively ended centralized Tibetan administration until the Sa-skya period. Ösung's allies managed to keep control of Lhasa, and Yumtän was forced to go to Yalung, where he established a separate line of kings. In 910, the tombs of the emperors were defiled.
Yumtän