in1185 , minamoto no yoritomo asked the imperial court for permission to place shugo and jito (military governor and estate steward ) and got the bunji imperial sanction , and at the same time , he also gained a right to collect five sho (about 9 liter ) of military provisions of rice from every one tan (an old unit showing the area of land of 300 tsubo; 991 .7 square meters ) of rice paddy of shoen (manor in medieval japan ) and kokugaryo (territories governed by provincial government office ). 文治元年（1185年）に源頼朝が守護・地頭の設置求めて文治の勅許を受けると、同時に荘園・国衙領の田1段から兵粮米5升を徴収する権利を得た。
