Souyama 【曹山】1 The Japanese surnames etymology dictionary.
Hiroshima-ken Onomichi-shi · Chiba-ken . Tell Hiroshima-ken Onomichi-shi that the priest who came from Shina in the Edo era used "Yuyama" from the doctor's mountain where there was a temple opened with a real name "thousand". The location of the temple is unknown. Medicine Mountain is a mountain name in estimation. The name of the country of the Chinese of the Edo period is Ming / Qing. There is also a story that it was pronounced as thuuzan in the Edo period. Hiroshima-ken Onomichi-shi Distributed in Kinashimayama Kinnozoncho. 千 reference.