Assertion: fortress's defence | /r/CapableOf | have been a combination of stone walls
Facets:
value: with earthworks and timber palisades
type: OTHER
value: with norman modifications
type: OTHER
value: in the 1180s
type: TEMPORAL
Source sentences:
text: In the 1180s the defences appear to have been a combination of stone walls (the old Roman structure) with Norman modifications, plus earthworks and timber palisades.