Location of Capital: China was divded by three Regional states
Replaced by: Southern and Northern Dynasties
The first of the two periods, the Western Jìn Dynasty (ch: 西晉, 265–316), was founded by Emperor Wu, better known as Sima Yan. Although providing a brief period of unity after conquering the state of Eastern Wu in 280, the Jìn could not contain the invasion and uprising of nomadic peoples after the devastating War of the Eight Princes. The capital was Luoyang until 311 when Emperor Huai was captured by the forces of Han Zhao. The successive reign of Emperor Min lasted four years in Chang'an until its conquest by Han Zhao in 316.
Meanwhile remnants of the Jìn court fled from the north to the south and reestablished the Jìn court at Jiankang, south-east of Luoyang and Chang'an and near modern-day Nanjing, under the Prince of Langye. Prominent local families of Zhu, Gan, Lu, Gu and Zhou supported the proclamation of Prince of Langye as Emperor Yuan of the Eastern Jìn Dynasty (ch: 東晉 317–420) when the news of the fall of Chang'an reached the south. (Because the emperors of the Eastern Jìn Dynasty came from the Langye line, the rival Wu Hu states which did not recognize its legitimacy would at times refer to Jìn as "Langye.")