足利義昭
After the death of Takeda Shingen, Nobunaga's entry into Kyôto presented him with a situation very different from that from which he had come. He focused on Ashikaga Yoshiaki, who had openly declared hostility more than once, despite the Imperial Court's intervention. Nobunaga was able to defeat Yoshiaki's forces, and the power of the Ashikaga was effectively destroyed on 27 August, 1573, when Nobunaga drove Yoshiaki out of Kyoto and sent him into exile. Yoshiaki became a Buddhist monk, shaving his head and taking the name "Sho-san", which he later changed to "Rei-o In", bringing the Ashikaga Shogunate to an end.