In the Naramitsu Family, the younger sister of Masu was the wife of Motoito SUMITOMO, married Takayasu MITSUI (Morinosuke), who was the president of the former Mitsui & Co., Ltd., and the eighth-generation family head of the "Mitsui-Nagasakacho Family," which was one of the Eleven Families of Mitsui.
住友友純の妻満寿の妹楢光の嫁いだ先が、三井十一家の一つ「三井永坂町家」の八代目当主、元三井物産社長三井高泰（守之助）に嫁いでいる。