Cao Ziqin (birth and death dates unknown) was a son of Cao Cao, a warlord who rose to power in the late Eastern Han dynasty and laid the foundation for the state of Cao Wei in the Three Kingdoms period of China. His mother was Lady Sun (孫姬), a concubine of Cao Cao. She also bore Cao Cao two other sons: Cao Zishang and Cao Biao.(武皇帝二十五男： ... 孫姬生臨邑殤公子上、楚王彪、剛殤公子勤， ...) Sanguozhi vol. 20. Cao Ziqin died early and had no son to succeed him. He was posthumously honoured as "Duke Shang of Gang" (剛殤公) in 231 by Cao Rui, the second emperor of the Cao Wei state.(剛殤公子勤，早薨。太和五年追封謚。無後。) Sanguozhi vol. 20.
See also Cao Wei family trees#Consort Sun Lists of people of the Three Kingdoms
References
Chen, Shou (3rd century). Records of the Three Kingdoms (Sanguozhi).