Ashikaga Yoshimasa
Because he no longer was "Kantō kubō", Shigeuji now called himself "Koga kubō". In 1457, eighth shōgun Ashikaga Yoshimasa sent his younger brother Masatomo with an army to pacify Kantō, but Masatomo was unable to even enter Kamakura. This was the beginning of an era in which the Kantō and Kamakura were devastated by a series of civil wars called the Sengoku period. The 5th Kantō kubo under the Later Hōjō clan was Ashikaga Yoshiuji, his daughter, Ashikaga Ujinohime succeeded Yoshiuji after his death. Ujinohime was the last Koga Kubo after Toyotomi Hideyoshi conquered the Later Hōjō clan, she was moved to Kōnosu Palace in 1590.