He also had a close relationship with the Tokugawa shogunate and was granted to use a portion of the real name of Ieyasu TOKUGAWA's first name to the name of his adopted son from Yukiie KUJO, "Yasumichi NIJO," in 1613.
江戸幕府との関係も良好で、慶長18年（1613年）養子に迎えた九条幸家（幸家）の子に、徳川家康の偏諱を賜って「二条康道」とした。