in serving as Ieyasu's guide and commanded 300 ninja guards to ensure his lord's safe passage to Mikawa. In 1584, Hattori Hanzo continued to serve his lord at Battle of Komaki and Nagakute with 100 warriors under his command. In 1590, Hattori Hanzo served during the Odawara campaign and was awarded 8,000 koku. By the time Ieyasu entered Kantō, he was awarded an additional 8,000 koku and had 30 yoriki and 200 public officials for his services. Ieyasu was said to have also begun to employ more Iga ninja with Hanzō as their leader. Historical sources say he lived the last several years of his life as a monk under the name "Sainen" and built the temple Sainenji, which was named after him and mainly built to commemorate Tokugawa Ieyasu's elder son, Tokugawa Nobuyasu. After Nobuyasu was accused of treason and conspiracy by Oda Nobunaga and was then ordered to commit seppuku by his father, Ieyasu. Hanzo was called in to act as the official second to end Nobuyasu's suffering, but he refused to take the sword on the blood of his own lord. Ieyasu valued his loyalty after hearing of Hanzo's ordeal and said, "Even a demon can shed tears."Arthur Lindsay Sadler, The Maker of Modern Japan: The Life of Tokugawa Ieyasu, C. E. Tuttle Co., 1978 Death He died at the age of 55 in 1597. There are two theories about his death. One asserts that he was assassinated by a rival Samurai, the pirate Fūma Kotarō. After Hanzo tracked him down to the Inland Sea, Kotarō lured him and his men into a small channel and used oil to set the channel on fire. The second theory is that Hanzo became a monk in Edo where he lived out the rest of his days until he died of illness. Legacy Hanzo's reputation as a samurai leader who commanded a 200-men strong unit of Iga warriors has grown to legendary proportions. Tales of Hattori's exploits often attributed various supernatural abilities, such as teleportation, psychokinesis, and precognition. After his death on 4 November 1596, Hattori Hanzō was succeeded by his son, whose name was also Masanari (third Hanzō), though written with different kanji (正就 instead of 正成). He was given the title of Iwami no Kami and his Iga men would act as guards of Edo Castle, the headquarters of the government of united Japan. Hanzō is actually a