Holy Roman Emperor <a href="https://en.wikipedia.org/wiki/Frederick_II,_Holy_Roman_Emperor" id="mwKg" rel="mw:WikiLink" title="Frederick II, Holy Roman Emperor">Frederick II</a> lands in <a href="https://en.wikipedia.org/wiki/Acre,_Israel" id="mwKw" rel="mw:WikiLink" title="Acre, Israel">Acre, Israel</a>, and starts the <a href="https://en.wikipedia.org/wiki/Sixth_Crusade" id="mwLA" rel="mw:WikiLink" title="Sixth Crusade">Sixth Crusade</a>, which results in a peaceful restoration of the <a href="https://en.wikipedia.org/wiki/Kingdom_of_Jerusalem" id="mwLQ" rel="mw:WikiLink" title="Kingdom of Jerusalem">Kingdom of Jerusalem</a>.<sup about="#mwt12" 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="./September_7#cite_note-1" id="mwLg" style="counter-reset: mw-Ref 1;"><span class="mw-reflink-text" id="mwLw">[1]</span></a></sup>
<span class="mw-reference-text reference-text" id="mw-reference-text-cite_note-1">A History of the Crusades: The Impact of the Crusades on the Near East By Kenneth M. Setton, Norman P. Zacour, Harry W. Hazard, p.363-364</span>