After becoming the fifth shogun, Yoshitsuna made Narisada MAKINO, who was Karo (chief retainer) of the Tatebayashi domain at that time, succeed the former kinju shuttoyaku post as the newly named 'Sobayonin' post, converting his status to Fudai daimyo (a daimyo who had belonged to the Tokugawa group before the Battle of Sekigahara), and made him handle important matters, preparing for dictatorship.
5代将軍となった綱吉は館林藩主当時の家老であった牧野成貞を初めて「側用人」の役職名で従来の近習出頭役の役職を引き継がせ、譜代大名に取り立てて幕府内で重用、これを独裁政治の足がかりとした。