In the northeast, Gongsun Du held control of the Liaodong Peninsula and its environs, where he had established a state. He was succeeded by his son Gongsun Kang in 204. In the north across the frontier, since the fall of imperial control, the region had become chaotic as the Xiongnu remnants came into conflict with the Xianbei.Goguryeo was invaded by warlord Gongsun Kang in 204, resulting in the Daifang Commandery. In 209, Kang invaded Goguryeo again, took the capital of Goguryeo and forced them to submit. Goguryeo was forced to move its capital further east. In Liang Province (present-day Gansu), rebellion had erupted in 184. In the west, Liu Yan had been Governor of Yi Province since his appointment in 188. He was succeeded by his son Liu Zhang in 194. Directly north of Liu Zhang's territory, Zhang Lu (leader of the Five Pecks of Rice) led a theocratic government at Hanzhong commandary (on the upper Han River). Liu Biao held control over his province as the Governor of Jing Province. Sun Quan held control over the lower Yangtze.