During the awards and punishments after the 1572 Battle of Kizakihara, Hisanobu received orders from Yoshihiro SHIMAZU to erect a Rokujizo (Six-Jizo) pagoda to mourn for the warriors killed in the battle, those from both the Shimazu and Ito armies alike.
元亀3年（1572年）に起こった「木崎原の戦い」での戦後処理の際に島津義弘の命を受けて、島津、伊東氏両軍の戦死者を弔う六地蔵塔を建てる。