<a href="https://en.wikipedia.org/wiki/Pope_Leo_XII" id="mwWQ" rel="mw:WikiLink" title="Pope Leo XII">Pope Leo XII</a> publishes the <a href="https://en.wikipedia.org/wiki/Apostolic_constitution" id="mwWg" rel="mw:WikiLink" title="Apostolic constitution">apostolic constitution</a> <i id="mwWw"><a class="mw-redirect" href="https://en.wikipedia.org/wiki/Quo_graviora_(1826)" id="mwXA" rel="mw:WikiLink" title="Quo graviora (1826)">Quo Graviora</a></i> in which he renewed the prohibition on Catholics joining <a href="https://en.wikipedia.org/wiki/Freemasonry" id="mwXQ" rel="mw:WikiLink" title="Freemasonry">freemasonry</a>.<sup about="#mwt57" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-10"}}' id="cite_ref-10" rel="dc:references" typeof="mw:Extension/ref"><a href="./March_13#cite_note-10" id="mwXg" style="counter-reset: mw-Ref 10;"><span class="mw-reflink-text" id="mwXw">[10]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-10"><cite about="#mwt54" class="citation web cs1" id="mwB1g"><a class="external text" href="https://www.papalencyclicals.net/leo12/l12quogr.htm" id="mwB1k" rel="mw:ExtLink nofollow">"Quo Graviora"</a>. March 13, 1826.</cite><span about="#mwt54" class="Z3988" id="mwB1o" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Quo+Graviora&amp;rft.date=1826-03-13&amp;rft_id=https%3A%2F%2Fwww.papalencyclicals.net%2Fleo12%2Fl12quogr.htm&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AMarch+13"></span></span>