What kind of person is Guan Yu?

A famous general in the late Eastern Han Dynasty

Guan Yu's original name is Changsheng, later changed to Yunchang, Han nationality, and a native of Bingzhou Hedongjie (now Yuncheng, Shanxi). A famous general in the late Eastern Han Dynasty of China, he followed Liu Bei since he gathered a crowd in the countryside to raise troops. He was one of Liu Bei's most trusted generals. After Guan Yu's death, his image was gradually deified by later generations. He has always been the object of folk sacrifices and was honored as "Guan Gong". "Guan Sheng the Great" is revered as the "Martial Saint" and is as famous as the "Literary Saint" Confucius.