Sue Harusata

Sue Harusata (1521–1555) was a chief retainer of the Ōuchi, the dominant daimyo of western Japan, and earned his place in Sengoku history as a schemer who assassinated his lord, Ōuchi Yoshitaka. Yet he would meet a dramatic end at the Battle of Miyajima, undone by the cunning stratagems of Mōri Motonari.

Harusata was born in 1521 as the son of Sue Okibō in Suō Province (present-day Yamaguchi Prefecture). Gifted in martial prowess from childhood, he rose to prominence as one of the Ōuchi clan's leading generals. Under Ōuchi Yoshitaka, he pacified the conflicts in Chikuzen and Buzen, building his military reputation; but as Yoshitaka grew absorbed in poetry and linked-verse composition, neglecting military affairs, Harusata's resentment of his lord deepened.

In 1551, Harusata staged a coup against Yoshitaka (the Tainemji Incident). Yoshitaka fled to Tainemji Temple in Nagato Province and took his own life, and the Ōuchi clan's authority passed into Harusata's hands. Harusata installed Ōuchi Yoshinaga as the new clan leader and established himself as master of western Japan.

As a military man, Harusata valued Japanese swords and actively patronized the swordsmiths of Suō and Nagato provinces. The Ōuchi's stronghold at Yamaguchi fostered a flourishing sword culture, and Harusata was a custodian of that tradition.

Yet in 1555, Mōri Motonari's clever stratagems drew him into a final battle at Itsukushima (present-day Miyajima). Crushed by a night assault and naval encirclement, Harusata took his own life. He was only 35. Remembered as the loser of the celebrated Battle of Miyajima (where the proverb holds that "many stratagems yield to few"), Harusata's name endured in later generations.