Tōsaku Suetomi (末富 東作, Suetomi Tōsaku), known by his pen name Chōgorō Kaionji (海音寺 潮五郎, Kaionji Chōgorō), was a Japanese author. Noted for his historical novels, he was active during the Shōwa era of Japan.
Source: “Chōgorō Kaionji”, English Wikipedia (CC BY-SA 4.0), excerpt