Shigetomo's son Shigetsugu adopted the 11th son of Yorifusa, the lord of the Mito clan, and became Shigeyoshi SUZUKI (a retainer of Mito-Tokugawa family); the Suzuki family continued as the chief retainer of the Mito clan and the surnames of the descendants were changed to 'Saika.'
子の重次は水戸藩主頼房の十一男を養子に迎え、鈴木重義(水戸徳川家家臣)となったため、鈴木家は水戸藩の重臣として続き、子孫は「雑賀」の姓に改めた。