Umegatani Tōtarō I (梅ヶ谷 藤太郎; March 16, 1845 – May 15, 1928) was a Japanese professional sumo wrestler from the town of Haki, Chikuzen Province, now Shiwa, Fukuoka Prefecture. He was the sport's 15th yokozuna. He was generally regarded as the strongest wrestler to emerge since the era of Tanikaze and Raiden.
Source: “Umegatani Tōtarō I”, English Wikipedia (CC BY-SA 4.0), excerpt