The name Kawachi derived from the fact that his father MINAMOTO no Yoshitada served as Kawachi no kami, but the Kawachi clan started and ended with Tsunekuni, and his son Moritsune called himself Moritsune INAZAWA.
河内氏は、父源義忠が河内守であったことに由来するが、河内氏は経国の一代限りで、子は稲沢氏を称した。