The capital of the <a href="https://en.wikipedia.org/wiki/Crusades" id="mwNA" rel="mw:WikiLink" title="Crusades">crusader</a> <a href="https://en.wikipedia.org/wiki/County_of_Edessa" id="mwNQ" rel="mw:WikiLink" title="County of Edessa">County of Edessa</a> <a href="https://en.wikipedia.org/wiki/Siege_of_Edessa_(1144)" id="mwNg" rel="mw:WikiLink" title="Siege of Edessa (1144)">falls</a> to <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Imad_ad-Din_Zengi" id="mwNw" rel="mw:WikiLink" title="Imad ad-Din Zengi">Imad ad-Din Zengi</a>, the <a href="https://en.wikipedia.org/wiki/Atabeg" id="mwOA" rel="mw:WikiLink" title="Atabeg">atabeg</a> of <a href="https://en.wikipedia.org/wiki/Mosul" id="mwOQ" rel="mw:WikiLink" title="Mosul">Mosul</a> and <a href="https://en.wikipedia.org/wiki/Aleppo" id="mwOg" rel="mw:WikiLink" title="Aleppo">Aleppo</a>.<sup about="#mwt32" 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_24#cite_note-4" id="mwOw" style="counter-reset: mw-Ref 4;"><span class="mw-reflink-text" id="mwPA">[4]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-4"><cite about="#mwt29" class="citation book cs1" id="CITEREFBaldwin1969">Baldwin, M. W. (1969). <a class="external text" href="http://digital.library.wisc.edu/1711.dl/History.CrusOne" id="mwCAs" rel="mw:ExtLink nofollow"><i id="mwCAw">A History of the Crusades Volume I: The first hundred years</i></a>. Madison, Wisconsin: University of Wisconsin Press. p.<span id="mwCA0" typeof="mw:Entity"> </span>461. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwCA4" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwCA8" typeof="mw:Entity"> </span><a href="./Special:BookSources/0-299-04834-9" id="mwCBA" rel="mw:WikiLink" title="Special:BookSources/0-299-04834-9"><bdi id="mwCBE">0-299-04834-9</bdi></a><span class="reference-accessdate" id="mwCBI">. Retrieved <span class="nowrap" id="mwCBM">2021-10-23</span></span>.</cite><span about="#mwt29" class="Z3988" id="mwCBQ" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=A+History+of+the+Crusades+Volume+I%3A+The+first+hundred+years&amp;rft.place=Madison%2C+Wisconsin&amp;rft.pages=461&amp;rft.pub=University+of+Wisconsin+Press&amp;rft.date=1969&amp;rft.isbn=0-299-04834-9&amp;rft.aulast=Baldwin&amp;rft.aufirst=M.+W.&amp;rft_id=http%3A%2F%2Fdigital.library.wisc.edu%2F1711.dl%2FHistory.CrusOne&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ADecember+24"></span></span>