502 Xiao Yan overthrows the Southern Qi and establishes the Liang dynasty.
534 After rebellions by the north Xianbei troops against sinicisation of the kingdom, the Northern Wei empire splits. Gao Huan rules the Eastern Wei, and forcibly removes the inhabitants of Luoyang to Ye, which can be better defended. Yuwen Tai rules the Western Wei from Chang'an.
Western Wei, Wikipedia