Mamiya Rinzō

[1] In 1785 Japanese explorers almost reached the Strait of Tartary to the west, Cape Patience to the east and Urup in the Kurils.

Although Japan believed that Mamiya had no child, it was announced in 2002 that he had had a daughter with an Ainu woman, and their descendants were living in Hokkaido.

[2] Mamiya is portrayed as one of the two main villains in the manga series Shin Kozure Okami (New Lone Wolf and Cub).

In this version, he is the chief henchman of Matsudaira Nobutsuna (and his natural son) and a master of disguise who assumes different identities after murdering the original persons.

He is also possibly even more ruthless that Matsudaira, subverting various ninja groups for his own use and using opium as a means of ensnaring and controlling various people, including the Shogun.