 Earlier on, when conflict first broke out between Yuan Shang and Yuan Tan, Xin Ping's brother Xin Pi accompanied Yuan Tan to Pingyuan County but left his family members behind in Yuan Shang's base at Ye city.Yuan Shang later ordered the Xin family to be arrested and imprisoned.In 204, Cao Cao led his forces to attack Yuan Shang at the Battle of Ye.