Zhang Gongsu (Chinese: 張公素) was a general of the Chinese Tang dynasty, who ruled the Lulong Circuit (盧龍, headquartered in modern Beijing) from 872 to 875 as its military governor (jiedushi) in de facto independence from the imperial government.
As of the middle of Emperor Yizong's Xiantong era (860–874), Zhang Gonsu served as an officer in the Lulong army under the military governor Zhang Yunshen, eventually reaching the position of prefect of Ping Prefecture (平州, in modern Qinhuangdao, Hebei).
[2] It was said that Zhang Gongsu was violent and harsh as a military governor, and as his eyes showed much sclera, the people of the circuit referred to him as the "White-Eyed Chancellor.
At the time, the people of the circuit much respected the senior officer Chen Gongyan (陳貢言), who was serving as the commander at Naxiang Base (納降軍, in modern Beijing).
)[2] Emperor Xizong subsequently demoted Zhang to be the census officer at Fu Prefecture (復州, in modern Hanzhong, Shaanxi).