The <a href="https://en.wikipedia.org/wiki/Livonian_Brothers_of_the_Sword" id="mwbg" rel="mw:WikiLink" title="Livonian Brothers of the Sword">Livonian Brothers of the Sword</a>, a Catholic military order, <a href="https://en.wikipedia.org/wiki/Siege_of_Tartu_(1224)" id="mwbw" rel="mw:WikiLink" title="Siege of Tartu (1224)">occupy Tarbatu</a> (today <a href="https://en.wikipedia.org/wiki/Tartu" id="mwcA" rel="mw:WikiLink" title="Tartu">Tartu</a>) as part of the <a href="https://en.wikipedia.org/wiki/Livonian_Crusade" id="mwcQ" rel="mw:WikiLink" title="Livonian Crusade">Livonian Crusade</a>.<sup about="#mwt26" 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="./August_15#cite_note-3" id="mwcg" style="counter-reset: mw-Ref 3;"><span class="mw-reflink-text" id="mwcw">[3]</span></a></sup><sup about="#mwt27" 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="./August_15#cite_note-4" id="mwdA" style="counter-reset: mw-Ref 4;"><span class="mw-reflink-text" id="mwdQ">[4]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-3">Tarvel, Enn (ed.). <i id="mwCGY">Henriku Liivimaa kroonika. Heinrici Chronicon Livoniae.</i> Tallinn: Eesti Raamat, 1982. (in Estonian)</span>