Cho Sosaeng

Cho Sosaeng (趙小生, died 1362) was the fourth hereditary commandant of the Yuan Ssangsŏng Prefecture at Hwaju. When Goryeo sent Yu In-u against Ssangsŏng in 1356, Sosaeng detained his uncle Cho Ton and resisted with the chiliarch Tak To-gyŏng. After Ton escaped and the townspeople surrendered, he fled to the Jurchen lands.

In 1362 Sosaeng brought in the Yuan general Naghachu; Yi Sŏng-gye routed them at Taltan-dong, and later that year the Jurchen darughachi and commandant killed Sosaeng and Tak To-gyŏng.