Luo Xian
During the Wei invasion of Shu, the Shu general Yan Yu (閻宇), who was in charge of guarding Badong Commandery (巴東郡; covering parts of present-day Chongqing), received orders to lead troops from Badong to support the Shu forces at the frontline. Yan Yu's deputy, Luo Xian, remained behind with only 2,000 troops to guard Yong'an (永安; present-day Fengjie County, Chongqing), the capital of Badong Commandery.