cliff castles
... that defence may not have been the primary function of Cornwall's cliff castles?
... that defence may not have been the primary function of <a href="./Cornwall" id="mwBE4" rel="mw:WikiLink" title="Cornwall">Cornwall</a><span about="#mwt21" class="nowrap" data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;'&quot;,&quot;href&quot;:&quot;./Template:'&quot;},&quot;params&quot;:{},&quot;i&quot;:0}}]}" id="mwBE8" style="padding-left:0.1em;" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span></span>s <b id="mwBFA"><a href="./Promontory_forts_of_Cornwall" id="mwBFE" rel="mw:WikiLink" title="Promontory forts of Cornwall">cliff castles</a></b>?