壇ノ浦の戦い
When Kikuchi Takanao sided with Minamoto no Yoritomo and began levying troops in Kyūshū in 1180, at the beginning of the Genpei War, Sadayoshi marched against him and defeated Takanao. Kikuchi Takanao was present at the Battle of Dan-no-ura. Shortly after the battle in the same year, he was turned over to Minamoto Yoshitsune by his lord Ogata no Saburo Koreyoshi. He was taken to the Rokujo riverbed and his head was cut off.