Supply country - Kyuukoku

...In ancient and medieval times, among the provinces under the Ritsuryo system, nobles, courtiers, shrines, temples, etc., other than kokushi, had real power in rimu (administrative affairs). They were also called sata provinces or kyukoku provinces, and those who held real power in rimu (administrative affairs) were called chigyoshu or kokushu. As the kokushi system, which was the local governance system under the Ritsuryo system, gradually collapsed and the position of kokushu (= zuryo) became a vested interest, while the salary system for nobles and courtiers became meaningless, it gradually became customary from around the mid-11th century to appoint the children of nobles as governors of various provinces, have them hold real power in rimu (administrative affairs) (this is called chigyo or sata), and earn profits in the process....

*Some of the terminology that refers to "providing country" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…古代･中世，律令制の国のうち，国司以外の公卿･廷臣や社寺等が吏務（りむ）(支配･統治の実務)の実権をもつ国。沙汰国，給国ともいい，吏務の実権をとる者を知行主とか国主という。　律令制の地方統治制度である国司制度がしだいにくずれ，国守(＝受領)の地位が利権化する一方，公卿･廷臣らの俸禄制度が無実化するにともない，11世紀中ごろから公卿の子弟を諸国の守に任命し，その公卿に吏務の実権をとらせ(これを知行とか沙汰という)，その間に収益を得させることがしだいに慣例となった。…

※「給国」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