Commandery
Hedong 河东Ancestral Commandery
The Lü Clan of Hedong: A Branch of Jiang Taigong
Main line: descended from the Jiang surname, through Yan Emperor. Enfeoffed with the State of Lü (Nanyang, Henan); his descendants took the state name as their surname.
Multiple origins: surname changes by ethnic minorities.
Root point: the ancient State of Lü in Nanyang, Henan.
▸ Domestic migration: originated in the Central Plains; crossed south to Jiangnan in the Wei–Jin era; entered Fujian and Guangdong in the Tang and Song; the Hongtong migrations of the Ming and Qing.
▸ Overseas branch: the Lü of Minnan and Chaoshan went to Nanyang.