DURING THE CIVIL WAR CROWLAND ABBEY CHURCH SERVED AS A ROYALIST STRONGHOLD AND WAS SURROUNDED BY EARTHEN DEFENCES MADE BY MR WELBY OF GEDNEY AND THE KINGS TENANTS. THE FIELD WORK WAS CONSTRUCTED OF BANKS AND DITCHES AND TOOK THE FORM OF A DEFENSIVE RAMPART AROUND THE CHURCHYARD WITH PROJECTING BASTIONS. IN THE C18 THE NAVE AND SOUTH AISLE BECAME RUINED AND PARISH USE WAS RESTRICTED TO THE NORTH AISLE. THE EARTHWORKS OF THE CIVIL WAR DEFENCES ARE INCLUDED IN THE SCHEDULING WITH THE RUINS OF PART OF THE ABBEY CHURCH, THE BURIED REMAINS OF THE ANGLO SAXON HERMITAGE AND MONASTERY (00263) AND MEDIEVAL MONASTIC BUILDINGS (23519). THERE IS A FULL DESCRIPTION IN THE REVISED SCHEDULING DOCUMENT 22613. {1}{2}