Kinga's ancestry can be traced back to a samurai family of Shinano Province, and one of his ancestors called Daizen, who was of nine generations ahead of Kinga, was a retainer of Nobunaga ODA and reportedly killed in battle at Honno-ji Temple.
祖先は信濃国の出自で、九世前の大膳という祖先は織田信長に仕え本能寺にて戦死したと伝えられる。