Tian Feng
Tian Feng (died 200), courtesy name Yuanhao (元皓), was an advisor to the warlord Yuan Shao in the late Eastern Han Dynasty.
In Romance of the Three Kingdoms
After defeating Gongsun Zan and absorbing many of his forces, Yuan Shao intended to invade the capital, Xuchang, which was in Cao Cao's possession at that time. Tian, along with Ju Shou objected to Yuan's plan. However Shen Pei and Guo Tu objected to Tian and Ju and advised on launching the attack. Yuan refused to heed Tian's advice and imprisoned him on pretext of lowering the troops' morale.
Tian is proven to have analyzed the situation correctly. In the field, Yuan failed to do anything due to his indecisiveness while his commanders were too busy with the hostilities among themselves.
After hearing that Cao Cao diverted his troops to invade Liu Bei, Tian urged Yuan Shao to invade Xuchang. However, Yuan did not want to raise the troops since his son was sick. Disappointed, Tian exclaimed "It is such a pity! Just as a unique opportunity presents itself, everything is spoiled by the illness of a child."