黒田長政

Kuroda Nagamasa (1568–1623), eldest son of the legendary strategist Kuroda Kanbei (Yoshitaka), forged his own reputation as a warrior of the front lines — quite different from his father's identity as a master of strategy and intelligence. Through the Korean campaigns of the 1590s, where he led the Kuroda forces in fierce fighting at battles including Jiksan, Nagamasa proved himself as a fighting general of the first order. At Sekigahara, he was one of the most important architects of the Tokugawa victory — not only fighting in the battle itself but conducting critical pre-battle diplomacy that brought Kobayakawa Hideaki and Kikkawa Hiroie over to the eastern side or at least secured their neutrality; Ieyasu reportedly said afterward that Nagamasa's pre-battle contributions deserved more credit than his battlefield performance. He received 520,000 koku in Chikuzen as his reward, establishing the Fukuoka domain that would last throughout the Edo period. His patronage of swordsmiths, including craftsmen in the Samonji tradition, helped establish Fukuoka as a center of sword culture in northern Kyushu. His celebrated conflict with his retainer Gotō Mototsugu — who eventually left his service and died at Osaka — reflects the transition from Sengoku warrior culture to Edo administrative governance that Nagamasa himself embodied.