<a class="mw-redirect" href="https://en.wikipedia.org/wiki/Mongol_invasion_of_Rus'" id="mwGg" rel="mw:WikiLink" title="Mongol invasion of Rus'">Mongol invasion of Rus'</a>: <a href="https://en.wikipedia.org/wiki/Kyiv" id="mwGw" rel="mw:WikiLink" title="Kyiv">Kyiv</a>, defended by <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Voivode_Dmytro" id="mwHA" rel="mw:WikiLink" title="Voivode Dmytro">Voivode Dmytro</a>, <a href="https://en.wikipedia.org/wiki/Siege_of_Kiev_(1240)" id="mwHQ" rel="mw:WikiLink" title="Siege of Kiev (1240)">falls</a> to the <a href="https://en.wikipedia.org/wiki/Mongols" id="mwHg" rel="mw:WikiLink" title="Mongols">Mongols</a> under <a href="https://en.wikipedia.org/wiki/Batu_Khan" id="mwHw" rel="mw:WikiLink" title="Batu Khan">Batu Khan</a>.<sup about="#mwt23" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-2"}}' id="cite_ref-2" rel="dc:references" typeof="mw:Extension/ref"><a href="./December_6#cite_note-2" id="mwIA" style="counter-reset: mw-Ref 2;"><span class="mw-reflink-text" id="mwIQ">[2]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-2"><cite about="#mwt20" class="citation book cs1" id="CITEREFLanger2021">Langer, Lawrence (2021). <a class="external text" href="https://books.google.com/books?id=Y8I6EAAAQBAJ" id="mwBsQ" rel="mw:ExtLink nofollow"><i id="mwBsU">Historical Dictionary of Medieval Russia</i></a>. Lanham. Md.: Rowman &amp; Littlefield. p.<span id="mwBsY" typeof="mw:Entity"> </span>130. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBsc" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBsg" typeof="mw:Entity"> </span><a href="./Special:BookSources/9781538119419" id="mwBsk" rel="mw:WikiLink" title="Special:BookSources/9781538119419"><bdi id="mwBso">9781538119419</bdi></a>.</cite><span about="#mwt20" class="Z3988" id="mwBss" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Historical+Dictionary+of+Medieval+Russia&amp;rft.place=Lanham.+Md.&amp;rft.pages=130&amp;rft.pub=Rowman+%26+Littlefield&amp;rft.date=2021&amp;rft.isbn=9781538119419&amp;rft.aulast=Langer&amp;rft.aufirst=Lawrence&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DY8I6EAAAQBAJ&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ADecember+6"></span></span>