In the late 6th century the bishopric of Atrecht was connected to that of Cambrai, and at the start of the 7th century the same was done to the bishoprics of Tournai and Noyon.
6. sajandi lõpupoole ühendati Atrechti piiskopkond Cambrai piiskopkonnaga ja 7. sajandi alguses juhtus sama Tournai ja Noyoni piiskopkondadega.