Saitō Musashibō Benkei (西塔武蔵坊弁慶, 1155–1189), popularly known as simply Benkei, was a Japanese warrior monk (sōhei) who lived in the latter years of the Heian Period (794–1185)[1]. Benkei led a varied life, first becoming a monk, then a mountain ascetic, and then a rogue warrior. He later came to respect and serve the famous warrior Minamoto no Yoshitsune. He is commonly depicted as a man of great strength and loyalty, and a popular subject of Japanese folklore, showcased in many ancient and modern literature and productions.