According to some people, Mineo adopted a boy named TAKASHIMA no Morohisa, who was born between the Imperial Princess and ARIWARA no Narihira by adultery, and had him succeed Mineo.
一説によれば、内親王と在原業平が密通して生まれた男児を引き取り、高階師尚と名付け、自らの跡を嗣がせたという。