Miyamoto Musashi (c.1584–June 13 (Japanese calendar: May 19), 1645), also known as Shinmen Takezō, Miyamoto Bennosuke, or by his Buddhist name Niten Dōraku was a famous Japanese samurai, and is considered by many to have been one of the most skilled swordsmen in history. Musashi, as he is often simply known, became legendary through his outstanding swordsmanship in numerous duels, even from a very young age. He is the founder of the Hyōhō Niten Ichi-ryū or Niten-ryū style of swordsmanship and the author of The Book of Five Rings, a book on strategy, tactics, and philosophy that is still studied today. Source: Wikipedia