The rakugo "Sanoyama," set at Eko-in in Ryogoku (Sumida-ku, Tokyo 2-8-10) where kanjin sumo was held in the Edo period, was a hilarious staple of Kin'ya Kin'ya Ba-sho (1928–1982)—10th generation of the school. His father was 5th generation Kokontei Shinsho and his brother 3rd generation Kokontei Shinsho; his eldest daughter is actress Shino Ikebe. As a young man, after major intestinal surgery changed his outlook on life, he switched from rakugo apprentice training to study under his father, but received almost no formal training and instead developed a unique style by crafting stories on his own (photo from a CD jacket).
"Sanoyama" is both a shiko name and an elder name; historically several wrestlers used it, and as noted previously, ozeki Konishiki once held elder stock "Sanoyama." Today former ozeki Chiyotaikai serves as Sanoyama oyakata in the Kise stable.
Records show Sanoyama Shohei (1767–?) from Yamagata in the Bunka era, and Sanoyama Kōkichi (1835–1900) from present Chiba, maegashira from 1869 to 1877. The rakugo is fiction—historically neither could have faced 2nd-generation Tanikaze (1750–1795). Ba-sho's version has 1st-generation Kimura Shonosuke as referee, but the first Shonosuke served in Kan'ei (1624–1643); during Tanikaze's yokozuna era the famous referee was 7th-generation Shonosuke (1771–1799), who held the post a record 29 years. No point nitpicking.