 In 560, Western Wei's successor state Northern Zhou began to make overtures to Chen, offering to return Chen Xu.In 562, after Emperor Wen gave Northern Zhou the city of Lushan (魯山, in modern Wuhan, Hubei) in exchange, Chen Xu was allowed to return to Chen.Initially, Princess Liu and Chen Shubao were not returned, but after further negotiations by Emperor Wen, they were returned as well.