Ujizane was given supervision by his grandmother, Jukeini, and he made an attempt to stabilize his territory by designating Fujinomiya City as an area of Rakuichi-Rakuza (regulation-free market) in April of 1566, and he conducted his policy for industrial development by implementing Tokusei-rei and by exempting by certain duties, but he was unable to stop the decline.
氏真は祖母寿桂尼の後見を受けて領国の安定を図り、永禄9年（1566年）4月に富士宮市を楽市・楽座とし、徳政令の実施や役の免除などの産業振興政策を行ったが、衰退をとどめることはできなかった。