Zhang Gong 張恭

The Regular Palace Attendant Zhang Gong was a eunuch who probably sided with Zhang Rang.

Zhang Gong was one of the twelve Regular Palace Attendants.

Biography
Historical sources don't share much information on the eunuch Zhang Gong. In the sixth month of 185 A.D., which is late July or early August, Zhang Gong and eleven other eunuchs were enfeoffed as full marquises for their good work against Zhang Jiao and the Yellow Turbans.

It is likely that Zhang Gong was part of Zhang Rang's influentious faction.