After Former Qin destroyed rival Former Yan in 370, Fu Jiān initially put Wang Meng in charge of the six provinces that Former Yan possessed, as viceroy, but in 372 he recalled Wang to again be prime minister, and made Fu Rong the viceroy of the six provinces. Although he was away from the capital, he urged Fu Jiān not to incorporate so many Xianbei officials (particularly those from Former Yan's imperial Murong clan) into his own government, a suggestion Fu Jiān did not accept. Indeed, from this point on, although it was clear that Fu Jiān still trusted his brother deeply, he rarely listened to Fu Rong's cautionary suggestions.