Miyamoto Musashi was a Japanese swordsman, strategist, artist, and writer who became renowned through stories of his unique double-bladed swordsmanship and undefeated record in his 62 duels. Musashi is considered a kensei of Japan. He was the founder of the Niten Ichi-ryū style of swordsmanship. In his final years, Musashi authored The Book of Five Rings and Dokkōdō. 1584 – June 5, 1645; died at about 61. Alive at the same time as William Shakespeare, Rembrandt, Blaise Pascal, Elizabeth I of England, and Giovanni Pierluigi da Palestrina. Wiki link