Assertion: castle | /r/HasProperty | built in 1066 ce
Facets:
value: by william the conqueror
type: OTHER
value: to help prevent
type: PURPOSE
Source sentences:
text: First built in 1066 CE by William the Conqueror to help prevent anyone repeating his own invasion, the castle was largely rebuilt in stone and a massive keep added by Henry II in the latter half of the 12th century CE.