Satoyasu worked as the head of a police magistrate in the Gamo family, which held the position of chief retainer to perform political duties from the time when Ujisasato received additional estates after the Kunohe War, but there were many who antagonistic to each other within the family as he came into the hair-trigger situation with the chief retainers Satoyoshi and Satonari GAMO in Aizu, while Ujisato raised the army and traveled to Nagoya during the Bunroku War.
九戸の乱後に氏郷が加増された頃から、蒲生家における家老職にあたる仕置奉行の筆頭として政務を執っていた郷安であったが、文禄の役で氏郷が名護屋に出陣している際に、会津で重臣の蒲生郷可、蒲生郷成らと一触即発の自体を招くなど、家中では対立する人々が多かった。