# Era of Fragmentation

> period of Tibetan history (9th–11th centuries CE) during which the political centralization of the Tibetan Empire collapsed following a civil war between Yumtän (Yum brtan) and Ösung (’Od-srung)

**Wikidata**: [Q2065143](https://www.wikidata.org/wiki/Q2065143)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Era_of_Fragmentation)  
**Source**: https://4ort.xyz/entity/era-of-fragmentation


## References

1. Freebase Data Dumps. 2013