The Sugimoto clan also separated from the family line of Yoshitsura SAHARA, the second son of Yoshizumi MIURA, who was the younger brother of Yoshimune SUGIMOTO, and inherited the head family of the Miura family, and Tokitsura YOKOSUKA, the son of Yoshitsura, had a son named Muneaki SUGIMOTO, and from this son the family remained as the Sugimoto clan.
また、杉本義宗の弟で三浦本宗家を相続した三浦義澄の次男　佐原義連の家系からも杉本氏がわかれ、義連の子　横須賀時連に杉本宗明という子がおり以後、杉本氏として存続した。