The Eastern Wei (simplified Chinese: 东魏; traditional Chinese: 東魏; pinyin: Dōng Wèi) followed the disintegration of the Northern Wei, and ruled northern China from 534 to 550.In 534 Gao Huan, the potentate of the eastern half of what was Northern Wei territory following the disintegration of the Northern Wei dynasty installed Yuan Shanjian a descendant of the Northern Wei as ruler of Eastern Wei. Yuan Shanjian was a puppet ruler as the real power lay in the hands of Gao Huan.