It was based on the precedents ('Udaishoke no rei' [precedents of the family of Udaisho (Major Captain of the Right Division of Inner Palace Guards)]) since the era of Yoritomo and the morals of samurai society, and included many regulations of right, obligation and territory succession of gokenin.
頼朝以来の先例（「右大将家の例」）や武家社会の道理を基準とし、御家人の権利義務や所領相続の規定が多い。