Rokujiro Uchida - Rokujiro Uchida

...The area beyond this point was called Edouchi, and water was distributed from the castle grounds to the towns and temples of Edo through underground channels. It is said that Okubo Togoro Tadayuki, who was ordered by Tokugawa Ieyasu, opened the canal before Ieyasu entered the Kanto region, or that Uchida Rokujiro opened it around the Keicho period. After the canal was opened, Okubo Togoro was given the name of Monto and became the official confectioner of Edo Castle, but was not involved in the management of the waterworks. ...

*Some of the terminology explanations that mention "Uchida Rokujiro" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…これ以遠は江戸内と呼ばれ，暗渠で郭内から江戸の町々，寺社に配水された。開設は徳川家康の命を受けた大久保藤五郎忠行が，家康の関東入国に先立ち開いたとも，内田六次郎が慶長ころに開いたとも伝えられている。大久保藤五郎は神田上水開設後主水（もんと）の名を与えられ江戸城御用の菓子司となり，水道経営にはたずさわらなかった。…

※「内田六次郎」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