<a href="https://en.wikipedia.org/wiki/Irish_Catholics" id="mwRQ" rel="mw:WikiLink" title="Irish Catholics">Irish Catholic</a> gentry from <a href="https://en.wikipedia.org/wiki/Ulster" id="mwRg" rel="mw:WikiLink" title="Ulster">Ulster</a> attempt to <a href="https://en.wikipedia.org/wiki/Irish_Rebellion_of_1641" id="mwRw" rel="mw:WikiLink" title="Irish Rebellion of 1641">seize control</a> of <a href="https://en.wikipedia.org/wiki/Dublin_Castle" id="mwSA" rel="mw:WikiLink" title="Dublin Castle">Dublin Castle</a>, the seat of <a class="mw-redirect" href="https://en.wikipedia.org/wiki/English_rule_in_Ireland" id="mwSQ" rel="mw:WikiLink" title="English rule in Ireland">English rule in Ireland</a>, so as to force concessions.