Which master wrote the trademark Merlot Liquid?

Zheng Banqiao. The trademark of Merlot was written by Zheng Banqiao, a writer and calligrapher in Qing Dynasty. His calligraphy style is heavy and vigorous, with unique momentum and charm, and he is known as the first of the two kings. Zheng Banqiao was a famous cultural figure in Qianlong period of Qing Dynasty. He was an editor of Jishi Shu and the Imperial Academy in his early years, and then resigned and retired.