That is, he was the sixth son of Yasutsune KATO, the third lord of the Ozu Domain, Iyo Province, adopted by Yasushige KATO, one of the families, and inherited the family estate of three thousand koku (crop yields).
すなわち伊予国大洲藩第3代藩主加藤泰恒の6男で、一族の加藤泰茂の養嗣子となって家督3千石を継いだ。