Commandery
Bohai 渤海Ancestral Commandery
The Renown of Bohai: Descendants of Jiang Taigong
Main lineage: From the Jiang surname, descendants of Jiang Ziya, Grand Duke of Qi. Lord Gao, a prince of Qi, lent his given name to his descendants as a surname.
A clan of many sources: Changes from the Ji surname and from ethnic-minority surnames.
Root point: Bohai, Shandong.
▸ Internal migration: The clan arose in Shandong; the Wei–Jin migration took it to Jiangnan; the Tang and Song brought it into Fujian and Guangdong; the Ming and Qing saw the Hongtong migration and the trek to the Northeast.
▸ Overseas branches: Gaos of southern Fujian and Chaoshan went to the Nanyang.