Is Gao Shiqi an ancient person or a modern person?

Gao Shiqi (1645- 1704) is a native of Jiangcun. Famous scholar in Qing dynasty. My ancestral home is Yuyao (now Yuyao, Zhejiang). All the students devoted themselves to the imperial palace and were appreciated by the Qing saints. They served as ministers of "going south to study", and the official was Zhan Shi. In the twenty-eighth year of Kangxi (1689), Guo Xiu, the imperial adviser of Zuodu, neglected to "bully the monarch and destroy the law, and betray public and private affairs, and his crime can be punished by four people." Xu suggested that Xu He be relieved of his post, saying that they "formed a party for selfish ends, duplicity and bribery". In his later years, he was specially awarded James, James and Assistant Minister of Ritual. After his death, he was posthumously named Ke Wen. He is knowledgeable, capable of poetry and prose, good at calligraphy, good at textual research and appreciation, and has a very rich collection of calligraphy and painting. He is the author of 53 volumes of historical works such as Chronicle of Zuo Zhuan and Yin Qing Tang Ji.