In 870, Toyosaki-o proposed to limit the number of recipients of stipends among O clan to 429, and his proposal was accepted, while further confinement was posed, as described in "the Engishiki" (an ancient book for codes and procedures on national rites and prayers), to limit the number of princesses entitled to stipends to 262, in both cases of which replenishment could be done only when vacancy occurred.
貞観(日本)12年、豊前王の建議をいれて、王氏で禄を賜う者を429人に限定したが、『延喜式』では、さらに女王にも262人に限定し、いずれも欠員の生じたばあいにのみ、補充されることになった。