松本幸四郎
The son of "buyō" (traditional dance) master Fujima Kan'emon II, he was adopted into the kabuki theatre by Ichikawa Danjūrō IX, who then became his master. Kōshirō's sons would come to take the stage names Ichikawa Danjūrō XI, Matsumoto Kōshirō VIII, and Onoe Shōroku II; his son-in-law, Nakamura Jakuemon IV, was also an actor, along with many of Kōshirō's grandsons and great-grandsons.