In those days (the end of 12th century to the beginning of the 13th century) the central government (Insei (rule by the retired Emperor)) had not yet lost its power, creating a dual system of governments: the central government (Kyoto, the capital) and Kamakura government.
この当時（12世紀末～13世紀初頭）は、京都の中央政府（院政）の力も衰えておらず、中央（都、首都）と鎌倉の二元的支配体制であった。