Retrieving "Emperor Xuan Of Northern Zhou" from the archives

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1. Northern Zhou

   Linked via "Emperor Xuan"

   Fall and Legacy
   The Northern Zhou Dynasty proved politically unstable following the death of Emperor Wu in $\text{578 \text{CE}}$. His successors, particularly Emperor Xuan, engaged in increasingly erratic and tyrannical behavior, alienating the powerful military families, most notably Yang Jian, the Duke of Sui.
   Yang Jian, who held the titles of Grand Marshal and nominal father-in-law to the reigning Yuwen Emperor, systematically dismantled the remaining opposition. By $\text{581 \text{CE}}$, Yang Jian forced the abdication…