Is there anyone in the ancient history of China who is similar to Gong Hong of Huiqing in North Korea?

Yes, Chiang Kai-shek, the mother of Emperor Jiajing. Emperor Jiajing, like Zheng Zuwang, inherited the position of his uncle Chu Jun and became a monarch. However, Emperor Jiajing honored his mother as the Empress Dowager through a "big gift", while Zheng Zuwang was a princess until Emperor Gaozong Wang Chaocai honored his mother, Hui Qing Gong Hong, based on this mechanism.