Masanori, a member of the Akamatsu family, was allowed the succession to the head position in a family in October with his achievement that he recovered a sacred jewel from Gonan-cho (Second Southern Court) through the good offices of the Akamatsu family's old retainers such as Taro IWAMI, Tatewaki NYUYA and Yoshimitsu KOZUKI in 1458 and then Masanori began to revive the Akamatsu family as a shugo daimyo in a half of Kaga Province.
長禄2年（1458年）、赤松家旧臣である石見太郎、丹生屋帯刀、上月満吉らの尽力で後南朝から神爾を奪回した功績により、9月に赤松一族である政則の家督相続が許され、政則は加賀国半国の守護大名として赤松家を再興することとなった。