As Cloistered Imperial Prince Koben was close to Tsunayoshi because his maternal aunt was a lady-in-waiting of Nobuko TAKATSUKASA, Tsunayoshi's legal wife, Cloistered Imperial Prince Koben was in a position to be consulted by Tsunayoshi even though he was far younger than Tsunayoshi.
公辨法親王の母方の叔母が綱吉の正室鷹司信子の侍女だった縁から両者は親しく、公辨法親王の方が綱吉よりはるかに若年ではあったが綱吉の相談に与る立場にあった。