Traditionally, Ti's ancestry can be traced through his father Wujiang, the King of Yue, to the semi-legendary Yu the Great (大禹).

In terms of distribution Ouyangs have mostly been confined to southern China, especially the areas of southern Jiangxi, central Hubei and eastern Henan, with smaller pockets in Guangdong, Sichuan, Hunan and Guangxi.

Genealogical lineages and family trees have been established for a number of Ouyang clans around China, showing migration patterns from the Song to the Qing dynasty.

In Vietnam, this clan was often shortcut as Âu (歐), Dương (阳) or Dương/Giàng (陽).

By Vietnamese scholars, 歐陽 may be an origin of words văn-lang (minang / 文郎), mê-linh (maleng / 麊泠), âu-lạc (urang, orang, anak / 甌雒, 甌駱) and an-dương (arang / 安陽) what means "people" or "country" in ancient Tai and Malayo-Polynesian languages.