Iba Hideaki (伊庭秀明, c. 1648 – 1717) was a famed swordsman during the Edo period (17th century) of Japan. Hideaki had been an adept of the Shinkage-ryū at an early age, but later concluded to himself that the school had not reflected realistic fundamentals, which is why he then chose to travel around and look for a school that would better fit him. Hideaki had then followed in a certain duel with an unknown swordsman skilled within the in the Kyūshū region. Hideaki had lost the duel, in which he chose to become a disciple under the man that had defeated him. Years later, Hideaki would change his name to Iba Zesuiken, in which Hideaki founded the Shingyōtō-ryū school of swordsmanship in 1682, which was basically a merging of the Shinkage and Enmei's way of the sword. The name of Hideaki's sc