| Although they were written in the style of a private letter, they were customarily written by a Keishi since it was common for those with high rank to have their close aides write on their behalf. |
形のうえでは私信であるが、身分の高い人物は直接自分では書かず、近臣に書かせるのが通例であるため、通常家司が書いた。 |