帝辛
It is uncertain how the character for Li changed from the original 理 to the current 李. According to popular folklore, at the end of the Shang dynasty, the minister Li Zheng (理征) was executed by King Zhou of Shang who was known for his cruelty. Li Zheng's son Li Lizhen (理利貞) escaped with his mother to the ruins of Yihou (伊侯之墟), where they survived by eating plums. In gratitude, Li Lizhen changed his surname to 李, a character that means "plum" and is a homophone of 理. Li Lizhen was said to have settled at Ku County (苦縣), in modern Luyi County, Henan province, which is regarded as the original hometown of the Li surname.