with ninjutsu manuals published by his descendants have led some sources to define him as a ninja. This depiction is also common in popular culture. Ishikawa Goemon (1558–1594): Goemon reputedly tried to drip poison from a thread into Oda Nobunaga's mouth through a hiding spot in the ceiling, but many fanciful tales exist about Goemon, and this story cannot be confirmed. Fūma Kotarō (d. 1603): A ninja rumored to have killed Hattori Hanzō, with whom he was supposedly rivals. The fictional weapon Fūma shuriken is named after him. Mochizuki Chiyome (16th century): The wife of Mochizuke Moritoki. Chiyome created a school for girls, which taught skills required of geisha, as well as espionage skills. Momochi Sandayū (16th century): A leader of the Iga ninja clans, who supposedly perished during Oda Nobunaga's attack on Iga province. There is some belief that he escaped death and lived as a farmer in Kii Province. Momochi is also a branch of the Hattori clan. Fujibayashi Nagato (16th century): Considered to be one of three "greatest" Iga jōnin, the other two being Hattori Hanzō and Momochi Sandayū. Fujibayashi's descendants wrote and edited the Bansenshukai. Katō Danzō (1503–1569): A famed 16th-century ninja master during the Sengoku period who was also known as "Flying Katō". Tateoka Doshun (16th century): An intermediate-ranking Iga ninja during the Sengoku period. Karasawa Genba (16th century): A samurai of the Sengoku period, in the 16th century of the common era, who served as an important retainer of the Sanada clan. In popular culture The image of the ninja entered popular culture in the Edo period, when folktales and plays about ninja were conceived. Stories about the ninja are usually based on historical figures. For instance, many similar tales exist about a daimyō challenging a ninja to prove his worth, usually by stealing his pillow or weapon while he slept. Novels were written about the ninja, such as Jiraiya Gōketsu Monogatari, which was also made into a kabuki play. Fictional figures such as Sarutobi Sasuke would eventually make their way into comics and television, where they have come to enjoy a culture hero status outside their original mediums. Ninja appear in many forms of Japanese and Western popular media, including books (Kōga Ninpōchō), movies (Enter the Ninja, Revenge of the Ninja, Ninja Assassin), television (Akakage, The Master, Ninja Warrior), video games (Shinobi, Ninja Gaiden, Tenchu, Sekiro, Ghost of Tsushima), anime (Naruto, Ninja Scroll,