Taihō Kōki — sumo (yokozuna) with roots in the Russian Empire
Taihō Kōki (born Kōki Naya; Ukrainian name form Ivan Markiyanovych Boryshko) was a Japanese sumo wrestler who became the 48th yokozuna in 1961. He won 32 tournament championships between 1960 and 1971, a record unequaled until 2014, and is widely cited as the greatest sumo wrestler of the post-war period.
Tracing the roots — Runivshchyna, Kharkiv Oblast (Ukraine)
Born on 29 May 1940 in Shisuka, Karafuto (Japanese South Sakhalin), to a Japanese mother, Kiyo Naya, and an ethnic Ukrainian father, Markiyan Boryshko. His father was born in the village of Runivshchyna in present-day Kharkiv Oblast (then Russian Empire) and had left after the Bolshevik Revolution.
Runivshchyna, Kharkiv Oblast (Ukraine). At the time, this region lay within the Russian Empire, which spanned from Poland to the Pacific.