Kiyoyuki's sons include a Monjo hakase Fumie MIYOSHI, a Shikibu-sho (the Ministry of Ceremonies) official Fumiaki MIYOSHI, and the priests Jozo and Nichizo; and Fumiaki's son Michimune MIYOSHI who was also a Monjo hakase, was the last Miyoshi who left his mark in the history.
子として文章博士三善文江や式部省三善文明、僧侶の浄蔵・日蔵が知られるが、文明の子・三善道統が文章博士になったのを最後に歴史から姿を消す。