During the Kamakura period, descendants of Kunimoto became gokenin (immediate vassal of the shogunate) and on an entry dated April 28, 1195 of "Azuma Kagami (The Mirror of the East)," the names of 'Nose hogandai' and his cognate, 'Awa hogandai' are listed among soldiers who accompanied the group on a trip to memorial service for Shogun family at Todai-ji temple.
鎌倉時代に入ると国基の後裔は幕府の御家人となり、『吾妻鏡』建久6年（1195年）3月10日(旧暦)条にある将軍家東大寺供養に随行する兵の中に「野瀬判官代」とその同族「安房判官代」の名がみえている。