In the beginning, Shigetsugu's son Shigenaga EDO, opposed to Yoritomo, killed a Miura clan member on the Yoritomo side, but after they made peace, he became a shogunal retainer of the Kamakura bakufu (Japanese feudal government headed by a shogun).
重継の子江戸重長は初め頼朝と対立して頼朝方の三浦氏を伐ったが、後に和解して鎌倉幕府の御家人となった。