THE SOGA-UJI
Soga no Ishikawa founded this uji. His son, Machi, shared the administrative power with Heguri no Tsuku in the reign of Richu (A.D. 400-405), and Machi's great-grandson, Iname, immortalized himself by promoting the introduction of Buddhism in the reign of Kimmei (A.D. 540-571). Iname's son, Umako, and the latter's son, Yemishi, will be much heard of hereafter. No family, indeed, affected the course of Japanese history in early days more than did the Soga-uji.
THE HEGURI-UJI
During the reign of the Emperor Richu (A.D. 400-405), Heguri no Tsuku, founder of this uji, shared in the administration with Soga no Machi. His son, Heguri no Matori, was minister under Yuryaku (A.D. 457-459), and the fate which he and his son, Shibi, brought upon their family is one of the salient incidents of Japanese history.
THE KI-UJI
The representatives of this uji, from the days of its founder, Ki no Tsunu, took a prominent share in the empire's foreign affairs, but served also in the capacity of provincial governor and commander-in-chief.
THE KATSURAGI-UJI
Nintoku's Empress, Iwa, was a daughter of the ancestor of this uji, Katsuragi no Sotsu, and the latter's great-granddaughter, Hae, was the mother of two sovereigns, Kenso (A.D. 485-487) and Ninken (A.D. 488-498).