But, the Mikawa-Matsui clan (Yasuchika MATSUDAIRA line) became Fudai daimyo (hereditary feudal lord), maybe because of this, they are not addressed as families of Tameyoshi of the Seiwa-Genji (Minamoto clan) in "Kansei Choshushokafu."
ところが三河松井氏（松平康親の系）が譜代大名となったので、これをはばかったか寛政重修諸家譜では清和源氏為義流を公称してはいない。