200s to 210s) was a Chinese military general, politician, and warlord who lived during the late Eastern Han dynasty.
He became a vassal of the state of Cao Wei in the early Three Kingdoms period.
In 204, he inherited his father's appointment and controlled the territories of Liaodong, Xuantu and Lelang commanderies.
In 204, Gongsun Kang helped invade Goguryeo after the older brother of King Sansang of Goguryeo, Balgi, went to Gongsun Kang and requested 30,000 soldiers to invade Goguryeo so that Balgi could become king.
[6] Pressure from Liaodong forced Goguryeo to move their capital in the Hun River valley to the Yalu River valley near Hwando.