Assertion: castle | /r/CapableOf | remain viable defensive features
Facets:
value: frequently
type: TEMPORAL
value: in these circumstances
type: TEMPORAL
Source sentences:
text: In these circumstances older castles could frequently remain viable defensive features, although the siege of Cahir Castle in 1599 and the attack on Dunyvaig Castle on Islay in 1614 proved that if artillery could be brought to bear, previously impregnable castle walls might fall relatively quickly.