According to the theory that the mother of Princess Matsu's another older sister Shinryuin was also Aburakawafujin, Princess Matsu's sisters were Princess Mari and Princess Kiku.
松姫のもうひとりの姉真竜院の母も油川夫人とする説によると、松姫の同母姉妹は真理姫、菊姫とされる。