Gao Lishi
Later that year, when Emperor Xuanzong, seeing that both An Lushan and An Sishun (who by this point was the military governor of Shuofang Circuit (朔方, headquartered in modern Yinchuan, Ningxia)) had poor relations with Geshu Han, the military governor of Hexi (河西, headquartered in modern Wuwei, Gansu) and Longxi (隴西, headquartered in modern Haidong prefecture, Qinghai) Circuits, and wanted to improve relations between these three key border troop commanders, he summoned all three to the capital and had the powerful eunuch Gao Lishi host a feast for the three of them, trying to get them to resolve their unpleasantries. At the conference, however, Geshu and An Lushan got into an argument, which only stopped after Gao gazed at Geshu, stopping him from responding to An Lushan's insults.