Ashikaga Yoshimasa
( – 1497) was a Muromachi period warrior and the Kamakura-fu's fifth and last "Kantō kubō" ("Shōgun" Deputy). Fourth son of fourth "Kubō" Ashikaga Mochiuji, he succeeded his father only in 1449, a full decade after his death by "seppuku". His childhood name was . His rule was from its onset troubled by hostilities with the central government: he was finally deposed in 1455 by "shōgun" Ashikaga Yoshimasa, after which he escaped to Koga in Shimōsa Province, where he became known as "Koga kubō". There, he ruled until his death in 1497.