Chen is a descendant of Gui. After the destruction of the Shang Dynasty, Sun Guiman, the 34th generation of Shun, was found, and he was appointed to establish the State of Chen in (now Huaiyang, Henan). The descendants of Guiman take the country as their surname and call it Chen. Feng Guiman is the ancestor of Chen's surname.
The above information is for reference only. It is recommended to consult relevant departments or professionals in Lianzhou to obtain more accurate information.