Chichibunomiya Rugby Stadium is a rugby union stadium located in the Aoyama district of central Tokyo, Japan. It is the spiritual home of Japanese rugby union and the headquarters of the Japan Rugby Football Union. Named for Prince Chichibu, the late brother of Emperor Hirohito, the venue is used mostly for rugby sevens and rugby union matches.
Redevelopment plans call for the stadium and the adjacent Meiji Jingu Stadium, used for baseball, to be demolished and replaced with new facilities.
Wikipedia https://en.wikipedia.org/wiki/Chichibunomiya_Rugby_Stadium
Coordinates 35°40'21.537" N 139°43'6.244" E