Toshihisa MAEDA, his adoptive father, was the eldest brother of Toshiie MAEDA and the Lord of Arako Castle in the Province of Owari (Nakagawa Ward, Nagoya City, Aichi Prefecture).
養父の前田利久は、前田利家の長兄で、尾張国荒子城主（愛知県名古屋市中川区）であった。