하후연
In 213, Ma Chao besieged Wei Kang, the Inspector () of Liang Province, in the provincial capital Ji (兾; or Jicheng, in present-day Gangu County, Gansu). Xiahou Yuan wanted to lead reinforcements to help Wei Kang but arrived too late as Ji had already fallen to Ma Chao. Xiahou Yuan and his army had travelled more than 200 "li" on their way to Ji when they fell into an ambush set up by Ma Chao. Xiahou Yuan lost the battle and decided to withdraw his troops when he heard that the Di tribes in Qian County () had started a rebellion.