Empress Kōken, or Empress Shōtoku (718-770), the 48th imperial ruler of Japan
The seven female monarchs who reigned before Go-Sakuramachi were Suiko, Kōgyoku (Saimei), Jitō, Gemmei, Genshō, Kōken (Shōtoku), and Meishō.
Ono no Imoko is often cited as an example of an official who achieved promotion under the new meritorious Twelve Level Cap and Rank System implemented by Prince Shōtoku in 603.