at irregular intervals. Since its declining, Xuyi once moved the capital to the area of Xuzhou and populated it with people who were migrated southwards. Pengcheng, a city at the junction of the ancient Bian and Si Rivers, was founded by Lü (annexed by Song later). Chu took the city in the war of 573 BCE, but ceded the city back to Song in the next year, as a coercive measure. Imperial China In 208 BC, Xiang Yu and Liu Bang pull their troops into Pengcheng, to where the Emperor Yi of Chu transferred his capital from Xuyi later, after Xiang Liang's death. The Emperor Yi was exiled to the southern China by Xiang Yu in 206 BC, the latter then proclaimed himself the Hegemon-King of Western Chu, and established his capital in Pengcheng too, until 202 BC. During the Han dynasty, a new Chu Kingdom was established with its capital at Pengcheng. It was ruled by various imperial princes during the Western Han period (202 BC – 9 AD). Liu Jiao, the younger half-brother of Liu Bang, became the first Prince of Chu. In 154 BC, the prince Liu Wu participated in the Rebellion of the Seven Princes. However, he was defeated afterwards and Chu's territories were greatly diminished. By the end of the second century, a prosperous Buddhist community had been settled at Pengcheng. At the turn of the second century, Pengcheng changed hands several times among Cao Cao and his rivals before being annexed to Cao Wei in about 200. In the intervening years, the seat of Xuzhou (Xu province) was transferred from Tancheng to Xiapi, which located in the northwest of Suining. While Pengcheng became the seat later than 220. With the invasions of the Five Barbarians, considerable local households migrated to the south, a Liu clan from Pengcheng ascended to the gentry, its most well known descendant is Liu Yu, the Emperor Wu of Liu Song. Pengcheng was taken by the Northern dynasties later. Liu Yu recaptured the lost territory in the north of the Huai River in about 408. Xuzhou was divided into two parts: Beixuzhou (North Xuzhou) and Xuzhou (with Jingkou as its seat) in 411. North Xuzhou whose seat was Pengcheng bounded on the south by the Huai River. Beixuzhou was restored as Xuzhou a decade later, while its south counterpart was renamed Nanxuzhou (South Xuzhou). Since then, Pengcheng remained being the