However, after Yoshimune succeeded to the Tokugawa Shogun family, he founded Gosankyo (Three Lord: three junior collateral houses of the Tokugawa family) (originally the Tayasu Tokugawa family and the Hitotsubashi Tokugawa family; later the Shimizu Tokugawa family was added); as a result, the lineage of the Kishu family greatly prospered.
しかし、吉宗が徳川将軍家の後嗣に入り新たに御三卿（田安徳川家と一橋徳川家、のちに清水徳川家が加わる。）を創始した。