In 1190 Yoritomo was appointed Ukone no daisho (Major Captain of the Right Division of Inner Palace Guards), the highest job of regular military officers, but the post was associated with various political constraints and he therefore soon resigned, hoping to become shogun with the higher degree of freedom that the position afforded.
1190年、頼朝は常設武官の最高職である右近衛大将に補任されたが、同職には様々な政治的制約も付随していたため、すぐに辞し、より自由度の高い征夷大将軍を望むようになった。