Tadamitsu Ina

...During the Edo period, this hereditary family was at the forefront of local experts and played an active role as Kanto district governors and deputies. Descended from the Seiwa Genji clan, they were originally called Togazaki and Arakawa, but under the 7th head of the family, Yasuuji, they lived in Ina district in Shinano province, and under his grandson Yasutsugu, they adopted the surname Ina. Later, Yasutsugu left Shinano and wandered the Tokai region, and his son Tadamoto served Matsudaira Hirotada and Tokugawa Ieyasu, father and son, and became a local lord with Kojima Castle in Mikawa province (Nishio City, Aichi Prefecture) as his residence. The line of the eldest son, Sadamasa, died out, but the line of the eldest son, Tadaie, flourished, and after the Tokugawa clan entered Kanto, his eldest son, Ina Tadatsugu, joined Ieyasu's close aides as deputy governor, playing a central role in governing the Kanto domain. ...

*Some of the terminology that mentions "Ina Tadaki" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…江戸時代，地方巧者（じかたこうしや）の筆頭に位置し，関東郡代や代官として活躍した世襲家。清和源氏の流れで，はじめ戸賀崎，荒川と称したが，7代易氏のとき信濃国伊那郡に住み，孫易次のとき伊奈を姓とした。のち易次は信濃を去り東海地域に流浪，その子忠基は松平広忠･徳川家康父子に仕え，三河国小島城(愛知県西尾市)を居城とした土豪となる。嫡男貞政の系統は断絶したが，十一男忠家の系統は栄え，嫡子伊奈忠次は徳川氏の関東入国後，代官頭として家康の側近グループに加わり，関東領国支配の中心的役割を果たした。…

※「伊奈忠基」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報