Gongsun Han 公孫閈 was a retainer of Tian Ying 田嬰 of Qi 齊. When King Wei of Qi 齊威王 (r. 378-343) wanted to appoint Tian Ying rulers over the statelet of Xue 薛 in the southwest, King Huai of Chu 楚懷王 (r. 328-299) felt endangered and menaced to attack the region. Gongsun Han was sent to Chu and convinced King Huai of the harmlessness of Tian Ying with the argument that many territories (regional statelets) would weaken Qi instead of strengthening it.