article: Shōgen
links: Louis-Frédéric Kamakura period Emperor Yōzei Jōgen (Kamakura period) Isaac Titsingh Emperor Go-Murakami Bun'ō Nichiren Emperor Go-Toba Japanese era name Emperor Tenji Empress Jitō Emperor Kameyama H. Paul Varley Shōka Emperor Fushimi National Diet Library