Yǒuyáng

Youyang was a Tujia native chieftaincy in the Wuling mountains of eastern Sichuan, held by the hereditary Ran clan, who served as border marshals under the late Yuan.

In 1372 Ran Rubiao sent his brother with tribute to the Ming court and became prefect; Youyang became a pacification commission in 1375. In 1600 Ran Yuelong defeated the Bozhou rebels at Sangmu Pass; in 1618 he led troops to Liaodong, where his brother and over a thousand men fell. Qing reforms replaced the chieftaincy with Youyang Independent Prefecture in 1735.