After Kodaiin's death, the Edo bakufu (Japanese feudal government headed by a shogun) forbade him to use the 'Hashiba' as his family name, and, therefore, he changed his name to Toshitsugu KINOSHITA and survived as hatamoto (a direct retainer of the Shogun), succeeding the posthumous estate of Kodaiin.
高台院没後は幕府から「羽柴」を称することを禁じられたため、木下利次と改名して高台院の遺領を継承し旗本として存続した。