Razan HAYASHI, a disciple of Seika FUJIWARA, served Ieyasu TOKUGAWA, and since then, the Hayashi family was appointed as Daigaku no kami (Director of the Bureau of Education) and controlled the educational policy of the bakufu.
藤原惺窩の弟子である林羅山が徳川家康に仕え、以来、林家が大学頭に任ぜられ、幕府の文教政策を統制した。