Koyanagi Tsunekichi (Japanese: 小柳 常吉; born Keiji Takaishi (高石 桂治, Takaishi Keiji), August 1817 – March 23, 1858) was a Japanese sumo wrestler from Ichihara District, Kazusa Province (now Ichihara, Chiba Prefecture). His highest rank was ōzeki. He is the third wrestler from Chiba Prefecture to have been promoted to this rank and the first since Kimenzan Yoichiemon in 1813, 39 years earlier.
Source: “Koyanagi Tsunekichi”, English Wikipedia (CC BY-SA 4.0), excerpt
