In the scene of Yoshitomo's making night attack on Shirakawa-dono Palace in "Hogen Monogatari" (The Tale of the Hogen War), the Kawagoe and the Morooka clan were identified as 'Koke' (honorable families), thereby distinguished from the other warriors.
『保元物語』の白河殿に義朝が夜討する場面で、河越氏・師岡氏は「高家」として他の武士と区別して書かれている。