During the <a href="https://en.wikipedia.org/wiki/Battle_on_the_Ice" id="mwJQ" rel="mw:WikiLink" title="Battle on the Ice">Battle on the Ice</a> of <a href="https://en.wikipedia.org/wiki/Lake_Peipus" id="mwJg" rel="mw:WikiLink" title="Lake Peipus">Lake Peipus</a>, <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Republic_of_Novgorod" id="mwJw" rel="mw:WikiLink" title="Republic of Novgorod">Russian</a> forces, led by <a href="https://en.wikipedia.org/wiki/Alexander_Nevsky" id="mwKA" rel="mw:WikiLink" title="Alexander Nevsky">Alexander Nevsky</a>, rebuff an invasion attempt by the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Teutonic_Knights" id="mwKQ" rel="mw:WikiLink" title="Teutonic Knights">Teutonic Knights</a>.<sup about="#mwt29" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-3"}}' id="cite_ref-3" rel="dc:references" typeof="mw:Extension/ref"><a href="./April_5#cite_note-3" id="mwKg" style="counter-reset: mw-Ref 3;"><span class="mw-reflink-text" id="mwKw">[3]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-3"><cite about="#mwt26" class="citation book cs1" id="CITEREFWindhausen1998">Windhausen, John D. (1998). "Alexander Nevsky". In Magill, Frank Northen (ed.). <a class="external text" href="https://books.google.com/books?id=aBHSc2hTfeUC" id="mwDQo" rel="mw:ExtLink nofollow"><i id="mwDQs">Dictionary of World Biography. Vol. 2: The Middle Ages</i></a>. Chicago: Salem Press. pp.<span id="mwDQw" typeof="mw:Entity"> </span>52–53. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwDQ0" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwDQ4" typeof="mw:Entity"> </span><a href="./Special:BookSources/9780893563141" id="mwDQ8" rel="mw:WikiLink" title="Special:BookSources/9780893563141"><bdi id="mwDRA">9780893563141</bdi></a>.</cite><span about="#mwt26" class="Z3988" id="mwDRE" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.atitle=Alexander+Nevsky&amp;rft.btitle=Dictionary+of+World+Biography.+Vol.+2%3A+The+Middle+Ages&amp;rft.place=Chicago&amp;rft.pages=52-53&amp;rft.pub=Salem+Press&amp;rft.date=1998&amp;rft.isbn=9780893563141&amp;rft.aulast=Windhausen&amp;rft.aufirst=John+D.&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DaBHSc2hTfeUC&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AApril+5"></span></span>