What's new

Welcome to Japan Reference (JREF) - the community for all Things Japanese.

Join Today! It is fast, simple, and FREE!


  1. Koizumi Castle

    Castle Koizumi Castle

    Koizumi Castle (小泉城 Koizumi-jō) is a former flatland castle located in Oizumi (大泉町), Ora-gun, in southeastern Gumma Prefecture. The castle was built in 1489, the first year of the Entoku era (延徳, 1489-1492). Today, only the ruins of the castle (all of the inner moat, part of the outer moat and...
Top Bottom