Test the ancient name based on the date of birth. Don't be Murong's. He only remembered that it was the last number of his birth year. Surname:4 is Yan or Shi According to the test, if the last number of a person born on January 1, 1986 was 4, then the surname ending with 4 in ancient names might be "Yan" or "Shi". The following are some ancient surnames that end with "4": 1 Yan Hui: During the Spring and Autumn Period, the people of the State of Lu were known for their virtue. 2 Ruan Ji (ruJi): During the Warring States Period, the people of Qi loved literature and drinking. 3. Wang Xizhi (yáo shī): The calligraphers of the Tang Dynasty called him "Wang Cao Sheng". 4 Meng Haoran (mèng Haoran): Poets of the Tang Dynasty were famous for their bold poems and fresh mountains and rivers. 5 Xin Qiji: Poets of the Southern Song Dynasty were famous for their deep feelings and bold poems. Of course, this was only a method to test ancient names based on the date of birth. It did not guarantee the accuracy of the results. If one wanted to determine the real ancient name, they would need to provide more information such as the year of birth, place, family background, and so on.