One theory states that Tokitsuna was a younger brother of Yoshitaka and was actually Yoshio SHIONOYA, called Magoshito OTSUHATA, who fought with Harutomo YUKI and died (they both died in 1559), and that Fuyutsuna was Takanobu and Michitsuna was Yoshimichi.
一説では、時綱が義孝の弟で、結城晴朝と戦って討死した乙畑孫四郎こと塩谷義尾(没年が同じ永禄二年(1559年))、冬綱が孝信、通綱が義通とも言われている。