Oni Gozen (鬼御åÂÂ) (fl. 16th century) was a Japanese noble lady and onna-musha from the Sengoku period. She was the wife of Hoashi Akinao (å¸Â足éÂÂç´) the retainer of à Âtomo clan. She is documented on "Yama no Shiro Kassen no Ki"(å±±ã®åÂÂÃ¥ÂÂæ¦ä¹Âè¨Â), written in 1782, 200 years after the time she lived by å¸Â足æ£å¨. She was a military commander who actively participated in the Kyushu campaign of 1586âÂÂ1587, helping to repel the Shimazu army from the à Âtomo clan.
She was nicknamed Oni (Ogre or Demon) because she proved to be a fierce and brave warrior. She received the honorific suffix <nowiki></nowiki>Gozen<nowiki></nowiki>, a Japanese term; that means "young lady" or <nowiki></nowiki>honorable<nowiki></nowiki>.
She was born Aiko No kyà Âki, the daughter of Kogo Settu no Kami (å¤å¾ÂæÂÂæ´¥å®Â).<nowiki/>. There are no details about her early life. She entered a political marriage with Hoashi Akinao, a samurai warlord, and became a retainer of Otomo Sorin, the leader of the Otomo clan. Following the wedding, she gave birth to a daughter, who later married Mori Gorà Âzaemon (森äºÂéÂÂå·¦è¡ÂéÂÂ).
According to "Yama no Shiro Kassen no Ki"(å±±ã®åÂÂÃ¥ÂÂæ¦ä¹Âè¨Â), written in 1782 by the descendant of the Hoashi clan, Oni Gozen was a beautiful and dignified woman. Her height was about 175 cm, very tall for someone at that time. She was not only a skillful martial artist, but also a military commander. <blockquote>She attacked enemy's camp like the lion hunting a flock of sheep. She defended the castle like the mizuchi burrowing in an abyss.</blockquote> The people of the neighboring province called her Oni Gozen, e.g. "Lady Demon", because of her bravery.
When the army of the Shimazu clan approached à Âtomo land in 1586 during the Kyushu campaign, Oni Gozen pledged herself with a seal of blood on a written oath at the Kumano shrine to die in battle rather than commit seppuku. Many men and women, including the wives and daughters of retainers, also took this oath. Her daughter was the wife of Mori Gorà Âzaemon (森äºÂéÂÂå·¦è¡ÂéÂÂ), who was besieged in Tsunomure Castle (è§ÂÃ¥ÂÂÃ¥ÂÂ). Oni Gozen sent a letter to her daughter and ordered her not to commit suicide but fight her enemies. Akinao was in command of Hijà « Castle (æÂ¥åºçÂÂÃ¥ÂÂ), with about 500 men, which was attacked by the Shimazu general Ijà «in Tadamune (ä¼ÂéÂÂé¢忠æ£Â) with over 6,000 men. Akinao let Oni Gozen and the small garrison defend the castle and led almost all his remaining men to attack the Ijà «in base in a pincer attack. This surprise attack put the enemy to rout and left Tadamune heavily injured. This battle was one of the last battles between à Âtomo and Shimazu before the main army of Toyotomi Hideyoshi came to Kyà «shà « to relieve à Âtomo and subdue Shimazu.