There were many families which were given important positions under the Tokugawa government as seen in the fact that the Hoshina clan was inherited by Masayuki HOSHINA, who was an illegitimate child of the shogun, Hidetada TOKUGAWA, and the Ogasawara clan was given Buzen Kokura to keep an eye on Kyushu.
また、保科氏は将軍徳川秀忠の庶子・保科正之が継ぎ、小笠原氏は豊前小倉藩で九州の押えを任じられるなど徳川政権下では重く用いられている家は多い。