Gempō Yamamoto (山本玄峰, Yamamoto Genpō; 1866-1961) was the abbot of both Ryūtaku-ji and Shoin-ji in Japan—also serving temporarily as the head of the Myōshin-ji branch of Rinzai Zen Buddhism.
Source: “Gempō Yamamoto”, English Wikipedia (CC BY-SA 4.0), excerpt
