36 people
... that 36 people have owned Warwick Castle since 1068?
... that <b id="mwBxY"><a href="./List_of_owners_of_Warwick_Castle" id="mwBxc" rel="mw:WikiLink" title="List of owners of Warwick Castle">36 people</a></b> have owned <a href="./Warwick_Castle" id="mwBxg" rel="mw:WikiLink" title="Warwick Castle">Warwick Castle</a> since 1068?