<a href="https://en.wikipedia.org/wiki/Battle_of_São_Mamede" id="mwOw" rel="mw:WikiLink" title="Battle of São Mamede">Battle of São Mamede</a>, near <a href="https://en.wikipedia.org/wiki/Guimarães" id="mwPA" rel="mw:WikiLink" title="Guimarães">Guimarães</a>: Forces led by <a href="https://en.wikipedia.org/wiki/Afonso_I_of_Portugal" id="mwPQ" rel="mw:WikiLink" title="Afonso I of Portugal">Afonso I</a> defeat forces led by his mother <a href="https://en.wikipedia.org/wiki/Theresa,_Countess_of_Portugal" id="mwPg" rel="mw:WikiLink" title="Theresa, Countess of Portugal">Teresa of León</a> and her lover <a href="https://en.wikipedia.org/wiki/Fernando_Pérez_de_Traba" id="mwPw" rel="mw:WikiLink" title="Fernando Pérez de Traba">Fernando Pérez de Traba</a>.<sup about="#mwt31" 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="./June_24#cite_note-4" id="mwQA" style="counter-reset: mw-Ref 4;"><span class="mw-reflink-text" id="mwQQ">[4]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-4"><cite about="#mwt28" class="citation book cs1" id="CITEREFAlan_W._Ertl2008">Alan W. Ertl (2008). <a class="external text" href="https://books.google.com/books?id=X9PGRaZt-zcC&amp;pg=PA300" id="mwB5M" rel="mw:ExtLink nofollow"><i id="mwB5Q">Toward an Understanding of Europe: A Political Economic Précis of Continental Integration</i></a>. Universal-Publishers. p.<span id="mwB5U" typeof="mw:Entity"> </span>300. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwB5Y" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwB5c" typeof="mw:Entity"> </span><a href="./Special:BookSources/978-1-59942-983-0" id="mwB5g" rel="mw:WikiLink" title="Special:BookSources/978-1-59942-983-0"><bdi id="mwB5k">978-1-59942-983-0</bdi></a>.</cite><span about="#mwt28" class="Z3988" id="mwB5o" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Toward+an+Understanding+of+Europe%3A+A+Political+Economic+Pr%C3%A9cis+of+Continental+Integration&amp;rft.pages=300&amp;rft.pub=Universal-Publishers&amp;rft.date=2008&amp;rft.isbn=978-1-59942-983-0&amp;rft.au=Alan+W.+Ertl&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DX9PGRaZt-zcC%26pg%3DPA300&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJune+24"></span></span>