sentences:  Archæological research has shown, in the cathedral of Trier, the existence of mason-work belonging to the Frankish period which may belong to this reconstruction by Nicetius.A fortified castle ("castellum") with a chapel built by him on the river Moselle is also mentioned by the same poet.Bishop Nicetius replanted vineyards on the slopes above the Moselle, to restore the area's wine business.