Battle of Tatarahama
1569 CE.
Shown on the map at 33.628°, 130.443°.
The 1569 Battle of Tatarahama was part of the struggles between the Ōtomo and Mōri samurai clans during Japan's Sengoku period, for control of the island of Kyūshū.
Text from the Wikipedia article Battle of Tatarahama (1569), licensed CC BY-SA 4.0.