Osakitsugashira - Head of the first barrel

…Each group had one head (controlling the young elders, 1500 koku of government revenue, clothed in cloth, and stationed in the Tsutsuji-no-ma room), 5-10 yoriki (200 koku of government revenue, lower ranks, and holding post), and 30-50 doshin (30 koku of government revenue, two-person stipend, lower ranks, and holding post). Incidentally, the title of "Sente-gashira" was a combination of "Sente-yumi-gashira" (also called "Osaki-yumi-gashira" or "Sogo-yumi-gashira") and "Sente-teppo-gashira" (also called "Osaki-tsutsu-gashira" or "Sogo-teppo-gashira"). In peacetime, they took turns to be on duty at the Renchi Gate, Hirakawaguchi, Shimo-ume-rin, Momiji-yamashita Gate, and Sakashita Gate of Edo Castle. …

*Some of the terminology explanations that refer to "Osakitsutsugashira" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…各組に頭1人(若年寄支配，役高1500石，布衣，躑躅間（つつじのま）詰)，与力5～10騎(役高200石，御目見以下，上下役，御抱場)，同心30～50人(役高30俵二人扶持，御目見以下，御抱場)が属した。ちなみに，先手頭は先手弓頭(御先弓頭あるいは総御弓頭ともいう)と先手鉄砲頭(御先筒頭あるいは総御鉄砲頭ともいう)とを併称した職名である。平時は江戸城蓮池門，平川口，下梅林，紅葉山下門，坂下門などに交替で勤番した。…

※「御先筒頭」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