Why is the child called Gong?

Gong Gong Gong Gong Gong Gong Die Kui Gong Gu Qiu Gonglian Road Gong Cuiying Gong Yimei Gong Jieyun Gong Youbai Gong Xuanxiao Gong Hanlian Gong Xinyun Gong Yanfang Gong Qiaolv Gong Suying Gong Meihui Gong Xiaoling Gong Yanshan Gong Yining Gong Ruobing Gong Xiya Gong Fangyun Gong Xiaohua Gong Yanyin Gong Yuwei