The Azuchi-Momyama period (安土桃山時代, 1568 to 1600) was not so much a “period” as the final phase of the Sengoku period (戦国時代, 1467 to 1615), as Oda Nobunaga entered Kyoto in 1568 and Tokugawa clinched victory at the Battle of Sekigahara in 1600, establishing the Tokugawa Shogunate and beginning the Edo period.
Ruins of a 16th c. castle in Kosa Machi (甲佐, which literally means “armored support”) Jinnochijyouato「陣ノ内城跡［じんのうちじょうあと］ have been nominated as a National Historic Site. I can’t imagine how Kosa would have figured into the fighting far north; perhaps I’ll look into it. Kosa is a lovely, often overlooked town. I’ll write more about it later. Let’s hope this brings more tourists to their oft-overlooked town, a gateway to central Kyushu; it will certainly bring me. - William