Yup, that's the problem, the practice is inconsistent even in Japan and we do say Oda Nobunaga, Tokugawa Ieyasu etc for sufficiently historical figures. The W

Yup, that's the problem, the practice is inconsistent even in Japan and we do say Oda Nobunaga, Tokugawa Ieyasu etc for sufficiently historical figures. The Wikipedia guideline for this is quite the mess of exceptions: https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style/Japan-related_articles#Personal_names https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style/Japa...