Following the custom of having illegitimate sons become priests, Yoshitsugu joined the Sanzenin order; however, in 1408, Yoshimitsu broke with this custom and brought Yoshitsugu back to secular life.
義嗣は、嫡男以外は出家させる慣例に従って三千院に入室したが、義満は応永15年（1408年）に家の定めを破って義嗣を還俗させた。