While the lineal descendants are 'Nobukazu' of the Mito line, Kozan's oldest son, and 'Yoshiyori' of the Shimabara line, the third son, there are some collateral descendants.
香山長子「信一」の水戸系、三男「僖凭」の島原系が本系としてあげられ、他にもいくつかの系統がある。