When the samurai government was established in Kamakura (in 1192), it became a dual government of the Chotei (Imperial Court), centered with the Emperor and the retired Emperor and Bakufu (samurai government) with a shogun in the middle.
鎌倉に武家政権が成立すると、天皇・上皇を中心とした朝廷と将軍を中心とした幕府とによる二重政権の様相を呈した。