Education
He founded the Ono-ha Ittō-ryū style of swordsmanship after his teacher made him head master of the Ittō-ryū.
神子上典膳
He founded the Ono-ha Ittō-ryū style of swordsmanship after his teacher made him head master of the Ittō-ryū.
He was one of two official sword masters for Tokugawa Ieyasu and his style, along with Yagyū Shinkage-ryū became one of the official ryūha of the Tokugawa Shogunate. Tenzen (典膳), meaning assistant cupbearer (for the Emperor) seems to have been a court title under Ritsuryō system, Tadaaki got as an honorific from the Bakufu.