Wanyan Yongji

Wanyan Yongji, courtesy name Xingsheng, was the seventh emperor of the Jurchen-led Jin dynasty, which ruled northern China between the 12th and 13th centuries. He reigned for about five years from 1208 until 1213, when he was assassinated by the general Heshilie Zhizhong. Despite having ruled as an emperor, Wanyan Yongji was not posthumously honoured as an emperor. Instead, in 1216, his successor, Emperor Xuanzong, reverted his status back to "Prince of Wei" (衛王) – the title Wanyan Yongji held before he became emperor – and gave him the posthumous name "Shao" (紹), hence Wanyan Yongji is historically referred to as "Prince Shao of Wei".