 He was considered to be a capable and diligent ruler, who at one point militarily expanded at the expense of Northern Qi.After Northern Qi fell to Northern Zhou in 577, however, Chen was cornered, and soon lost the gains it had previously made against Northern Qi.Emperor Xuan died in 582, leaving the state in the hands of his incompetent son Chen Shubao, and by 589, Chen would be destroyed by Northern Zhou's successor state Sui dynasty.