Assertion: castle's fortification | /r/HasProperty | added with hornworks
Facets:
value: during the english civil war
type: TEMPORAL
Source sentences:
text: During the English Civil War the fortifications were added to, with "hornworks" ('half moon' artillery batteries) built outside the main gates, additional defences connected the batteries, possibly as high as the original walls (14 ft), and a wide ditch outside the walls (later known as "Bush Dike") was added.