Jiang Qin
Jiang Qin (died 219),courtesy name Gongyi, was a military general serving under the warlord Sun Quan in the late Eastern Han dynasty. He previously served under Sun Quan's elder brother and predecessor, Sun Ce, and participated in various battles throughout his service under the Sun family, including Sun Ce's conquests in Jiangdong, the Battle of Xiaoyao Ford and Lü Meng's invasion of Jing Province.
Service under Sun Ce
Jiang Qin was from Shouchun County (壽春縣), Jiujiang Commandery (九江郡), which is in present-day Shou County, Lu'an, Anhui. He served as an Attendant (給事) under Sun Ce when Sun gained independence from the warlord Yuan Shu. When Sun Ce crossed the Yangtze River to start his conquests of the territories in the Jiangdong region, Jiang Qin was appointed as a "Major of Separate Command" (別部司馬) and placed in command of some troops. He accompanied Sun Ce on the campaigns and assisted in the conquest of Yuzhang Commandery (豫章郡). He was later reassigned to be the Commandant of Geyang (葛陽尉) and was placed in charge of three counties. During his tenure, he defeated some bandits and was promoted to Commandant of the West (西部都尉).