Northern Zhou [SEP] dissolved or abolished
Northern Zhou
The Northern Zhou (; ) followed the Western Wei, and ruled northern China from 557 to 581 AD. The last of the Northern Dynasties of China's Northern and Southern dynasties period, it was eventually overthrown by the Sui Dynasty. Like the preceding Western and Northern Wei dynasties, the Northern Zhou were members of the Tuoba clan of the Xianbei.
The Northern Zhou's basis of power was established by Yuwen Tai, who was paramount general of Western Wei, following the split of Northern Wei into Western Wei
Bian Prefecture
Bianzhou or Bian Prefecture (汴州) was a "zhou" (prefecture) in imperial China seated in modern Kaifeng, Henan, China. It existed (intermittently) from 576 to Later Jin's reign (936–947).
Eastern Wei first created the Liangzhou and Chengliujung. Northern Qi abolished Kaifengjun which administered Kaifengxian. Northern Zhou Xuandi (578–579) changed the name of Liangzhou to Bianzhou and so Bianshui became its name. The Junyixian was its administrative center, today's Kaifeng. This too was abolished during