Hironori Ōtsuka (大塚 博紀, Ōtsuka Hironori; June 1, 1892 – January 29, 1982)[a] was a Japanese master of karate who created the Wadō-ryū style of karate. He was the first Grand Master of Wadō-ryū karate, and received high awards within Japan for his contributions to karate.
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