<a href="https://en.wikipedia.org/wiki/Second_Northern_War" id="mwKw" rel="mw:WikiLink" title="Second Northern War">Second Northern War</a>/the <a href="https://en.wikipedia.org/wiki/Deluge_(history)" id="mwLA" rel="mw:WikiLink" title="Deluge (history)">Deluge</a>: Monks at the <a href="https://en.wikipedia.org/wiki/Jasna_Góra_Monastery" id="mwLQ" rel="mw:WikiLink" title="Jasna Góra Monastery">Jasna Góra Monastery</a> in <a href="https://en.wikipedia.org/wiki/Częstochowa" id="mwLg" rel="mw:WikiLink" title="Częstochowa">Częstochowa</a> are successful in fending off a <a href="https://en.wikipedia.org/wiki/Siege_of_Jasna_Góra" id="mwLw" rel="mw:WikiLink" title="Siege of Jasna Góra">month-long siege</a>.<sup about="#mwt33" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-4"}}' id="cite_ref-4" rel="dc:references" typeof="mw:Extension/ref"><a href="./December_27#cite_note-4" id="mwMA" style="counter-reset: mw-Ref 4;"><span class="mw-reflink-text" id="mwMQ">[4]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-4"><cite about="#mwt30" class="citation book cs1" id="CITEREFDabrowski2014">Dabrowski, Patrice M. (2014). <a class="external text" href="https://books.google.com/books?id=PK68DwAAQBAJ" id="mwB28" rel="mw:ExtLink nofollow"><i id="mwB3A">Poland: The First Thousand Years</i></a>. DeKalb, Ill.: Northern Illinois University Press. pp.<span id="mwB3E" typeof="mw:Entity"> </span>203–204. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwB3I" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwB3M" typeof="mw:Entity"> </span><a href="./Special:BookSources/9780875807560" id="mwB3Q" rel="mw:WikiLink" title="Special:BookSources/9780875807560"><bdi id="mwB3U">9780875807560</bdi></a>.</cite><span about="#mwt30" class="Z3988" id="mwB3Y" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Poland%3A+The+First+Thousand+Years&amp;rft.place=DeKalb%2C+Ill.&amp;rft.pages=203-204&amp;rft.pub=Northern+Illinois+University+Press&amp;rft.date=2014&amp;rft.isbn=9780875807560&amp;rft.aulast=Dabrowski&amp;rft.aufirst=Patrice+M.&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DPK68DwAAQBAJ&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ADecember+27"></span></span>