The "<a href="https://en.wikipedia.org/wiki/Nyköping_Banquet" id="mwFQ" rel="mw:WikiLink" title="Nyköping Banquet">Nyköping Banquet</a>": King <a href="https://en.wikipedia.org/wiki/Birger,_King_of_Sweden" id="mwFg" rel="mw:WikiLink" title="Birger, King of Sweden">Birger of Sweden</a> treacherously seizes his two brothers <a href="https://en.wikipedia.org/wiki/Valdemar,_Duke_of_Finland" id="mwFw" rel="mw:WikiLink" title="Valdemar, Duke of Finland">Valdemar, Duke of Finland</a> and <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Eric,_Duke_of_Södermanland" id="mwGA" rel="mw:WikiLink" title="Eric, Duke of Södermanland">Eric, Duke of Södermanland</a>, who were subsequently starved to death in the dungeon of Nyköping Castle.<sup about="#mwt20" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-1"}}' id="cite_ref-1" rel="dc:references" typeof="mw:Extension/ref"><a href="./December_10#cite_note-1" id="mwGQ" style="counter-reset: mw-Ref 1;"><span class="mw-reflink-text" id="mwGg">[1]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-1"><cite about="#mwt17" class="citation book cs1" id="CITEREFLiljegren2004">Liljegren, Bengt (2004). <a class="external text" href="https://books.google.com/books?id=dDhpAAAAMAAJ&amp;q=Nyk%C3%B6ping+Banquet+%2210+December+%22+%221317%22" id="mwBxM" rel="mw:ExtLink nofollow"><i id="mwBxQ">Rulers of Sweden</i></a>. Translated by Williams, Adam. Lund, Sweden: Historiska Media. p.<span id="mwBxU" typeof="mw:Entity"> </span>46. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBxY" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBxc" typeof="mw:Entity"> </span><a href="./Special:BookSources/9789185057634" id="mwBxg" rel="mw:WikiLink" title="Special:BookSources/9789185057634"><bdi id="mwBxk">9789185057634</bdi></a>.</cite><span about="#mwt17" class="Z3988" id="mwBxo" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Rulers+of+Sweden&amp;rft.place=Lund%2C+Sweden&amp;rft.pages=46&amp;rft.pub=Historiska+Media&amp;rft.date=2004&amp;rft.isbn=9789185057634&amp;rft.aulast=Liljegren&amp;rft.aufirst=Bengt&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DdDhpAAAAMAAJ%26q%3DNyk%25C3%25B6ping%2BBanquet%2B%252210%2BDecember%2B%2522%2B%25221317%2522&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ADecember+10"></span></span>