Liu Taigong

Liu Taigong (simplified Chinese: 刘太公; traditional Chinese: 劉太公; pinyin: Liú Tàigōng; died 197 BC), literally meaning a senior person named Liu, was the father of Liu Bang, the founding emperor of the Han Dynasty, which reigned for over 400 years. He was honored the title Taishang Huang (meaning Grand Emperor) after Liu Bang declared himself emperor. He died at the Royal Palace of Xiang Yang in 197 BC.
His name is not clear. Some historical sources says his name is Liu Zhijia (simplified Chinese: 刘执嘉; traditional Chinese: 劉執嘉), although this name is likely chosen after Liu Bang became Emperor.