 Complete the following phrase:  Liu Feng was a descendant of the Marquis of Luo , whose family name was Kou . He was also related but not directly to the Liu  family of Changsha 長沙; around present-day Changsha, Hu, who descended from Liu Fa , one of Emperor Jings sons. When Liu Bei seized control of four commanderies  Changsha, Lingling , Guiyang , Wuling   in southern Jing Province covering present-day Hubei and Hu in 209, he adopted Liu Feng as his son because he had no suitable heir at the time. In 211, Liu Bei led an army from Jing Province to Yi Province covering present-day Sichuan and Chongqing, ostensibly to help Yi Provinces governor Liu Zhang counter a rival warlord Zhang Lu in Hanzhong Commandery. When war broke out between Liu Bei and Liu Zhang in the following year, Liu Feng, then in his early 20s and famous for his combat skills and great physical strength, led forces from Jing Province together with Liu Beis other followers to assist his foster father in the 