At the time, Emperor Ogimachi hesitated over this unprecedented petition however, permission was granted based on the efforts of nobles working behind-the-scenes who found that the Nitta branch of the Egawa clan was purported to be part of the dynastic Fujiwara clan (which had close ties to the court).
このとき正親町天皇は前例のない申請に対して躊躇したが、新田氏系得川氏が「藤原氏」を称した前例が公家の奔走により見つかり、許可された。