Guan Yu (Guan Gong) was a general serving under the Warlord Liu Bei in the late Eastern Han Dynasty of China. He played a significant role in the civil war that led to the collapse of the Han Dynasty and the establishment of the state of Shu Han in the Three Kingdoms period, of which Liu Bei was the first emperor.
General Guan was deified as early as the Sui Dynasty (581–618), and is still popularly worshipped today among the Chinese people. He is variedly worshipped as an indigenous Chinese deity, a Bodhisattva in Buddhist tradition and as a guardian deity in Taoism and many religious bodies. He is also held in high esteem in Confucianism. These roles are not necessarily contradictory or even distinguished within the Chinese religious system, which often merge multiple ancient philosophies and religions.