《宋书·志·卷三十五》
三十年，撤南兖州将它并入南徐州，后来又恢复南兖蛆建制，治所也迁回卢堕。
三十年，省南兗州并南徐，其后复立，还治广陵。
In the 30th year, the southern Yanzhou prefecture was abolished and merged into the southern Xuzhou prefecture. Later, the southern Yanzhou prefecture was re-established, and the seat was moved back to Luzhu.