According to the official surname of Zheng, there are five official surnames: Xingyang, Yisheng, Yi, Yimen and Shudi.
After investigation, they all come from relevant cases in history:
"Xingyang Family"-from the founding of Emperor Taizu Huan Gong, with Xingyang as its capital, many people in the Zheng family were proud of it at that time, and their descendants were also proud of it. Therefore, there is a saying that "Zheng was born in Xingyang in the world", so Zheng is called "Xingyang's".
Zheng Chongguan in the Han Dynasty lived in the position of Shangshu, but his clothes were simple and he often wore clogs. Every morning when you hear the sound of clogs, you will know that Gong Zheng has entered the court. The emperor said to other officials, "I know Zheng Qing's voice." For a time, Zheng Qing's Voice was called a beautiful talk. Its descendants will also use the official surname "Yisheng Family" to sign their own homes.
"Inexplicable Family"-When Zheng Qingzhi, the ancestor of Yongding, was in office, the official worshipped the right prime minister and the envoy of the Tang Dynasty, and was promoted to Shen Guogong and Jia for four years. He spent100000 yuan to build houses and imperial books to help the inexplicable, so the descendants of the Qing Dynasty were called "inexplicable families" or "inexplicable emperors".
"Yimen Family"-Ji Zheng in Song Dynasty, promoted to the cabinet, worshiped officials and held important positions. Filial piety is the first official, and its descendants are ten it runs in the family, which is called filial piety. The emperor named it "Yimen", so there was a saying of "Yimen Family |".
"Books bring a family" —— Qin Zheng was appointed as the magistrate of Xingyang in Song Dynasty, who was a clean official and made outstanding achievements, and was promoted to Zhongshu. His family is prosperous and has its own vein. The world also calls it "a book with a family."
—— Excerpted from Zheng Wuduan's Xingyang Zheng Family Tree.