Kotooshu and Asako during their visit to Bulgaria in July 2009 when Purvanov conferred the Stara Planina, first class, on Kotooshu for his extraordinary contribution to the development of Bulgarian-Japanese relations.
Bulgarian sumo wrestler Kotooshu, born Kaloyan Mahlyanov, and his bride Asako Ando tied the knot on February 14 2010.
Nuptial rites started at the Meiji Temple in Tokyo, followed by a ceremony in a Christian church, Bulgarian media reported.
About 600 guests celebrated at a reception at the Tokyo Hotel. Hakuhō Shō, the only active yokozuna, was reportedly among the guests.
Head of the Bulgarian Sumo-wrestling Federation and the couple's best man Petar Stoyanov read a special greeting to the couple from Bulgarian President Georgi Purvanov, Bulgarian media said.