《明史·列传·卷一百六十一》
十七年三月，朝廷下诏封良玉为宁南伯，给他的儿子梦庚平贼将军的大印，大功告成以后就让他们父子世代把守武昌。
十七年三月，诏封良玉为宁南伯，畀其子梦庚平贼将军印，功成世守武昌。
In March of the 17th year, the court issued an edict to confer upon Liangyu the title of Ningnan Earl and gave his son Menggeng the Great Seal of General Ping Thief, and after their great achievements were accomplished their father and son would jointly be responsible for guarding Wuchang.