The third Koga kubo, Takamoto ASHIKAGA, had initially borne the name 'Takauji', but this coincided with the original name of the first Shogun, Takauji ASHIKAGA. Therefore, he later changed his name to 'Takamoto' (高基), which contained the character (Moto), taken from the personal name of the first Kamakura kubo, Motouji.
第3代古河公方足利高基は初め「高氏」と名乗ったが、初代将軍足利尊氏の初名と重なるために後に初代鎌倉公方・基氏の片諱より「高基」と改名した）。