Liu Yu (363–422) was a prominent Chinese military leader and the founder of the Song Dynasty. He played a crucial role in the unification of China during the chaotic period known as the Sixteen Kingdoms. Liu Yu initially served as a general and gained recognition for his military prowess. In 420, Liu Yu declared himself emperor, establishing the Song Dynasty after overthrowing the Eastern Jin Dynasty. His reign marked a significant transition in Chinese history, emphasizing stability and governance. Liu Yu is remembered for his efforts to restore order and promote cultural development during a time of fragmentation.