<a href="https://en.wikipedia.org/wiki/Pope_Leo_X" id="mwIA" rel="mw:WikiLink" title="Pope Leo X">Pope Leo X</a> excommunicates <a href="https://en.wikipedia.org/wiki/Martin_Luther" id="mwIQ" rel="mw:WikiLink" title="Martin Luther">Martin Luther</a> in the <a href="https://en.wikipedia.org/wiki/Papal_bull" id="mwIg" rel="mw:WikiLink" title="Papal bull">papal bull</a> <i id="mwIw"><a href="https://en.wikipedia.org/wiki/Decet_Romanum_Pontificem" id="mwJA" rel="mw:WikiLink" title="Decet Romanum Pontificem">Decet Romanum Pontificem</a></i>.<sup about="#mwt25" 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="./January_3#cite_note-3" id="mwJQ" style="counter-reset: mw-Ref 3;"><span class="mw-reflink-text" id="mwJg">[3]</span></a></sup>
<span class="mw-reference-text reference-text" id="mw-reference-text-cite_note-3"><cite about="#mwt22" class="citation book cs1" id="CITEREFTavuzzi1997">Tavuzzi, Michael M. (1997). <a class="external text" href="https://books.google.com/books?id=V58f64kc4EQC&amp;pg=PA80" id="mwCII" rel="mw:ExtLink nofollow"><i id="mwCIM">Prierias: The Life and Works of Silvestro Mazzolini Da Prierio, 1456-1527</i></a>. Duke University Press. p.<span id="mwCIQ" typeof="mw:Entity"> </span>80. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwCIU" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwCIY" typeof="mw:Entity"> </span><a href="./Special:BookSources/0-8223-1976-4" id="mwCIc" rel="mw:WikiLink" title="Special:BookSources/0-8223-1976-4"><bdi id="mwCIg">0-8223-1976-4</bdi></a>.</cite><span about="#mwt22" class="Z3988" id="mwCIk" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Prierias%3A+The+Life+and+Works+of+Silvestro+Mazzolini+Da+Prierio%2C+1456-1527&amp;rft.pages=80&amp;rft.pub=Duke+University+Press&amp;rft.date=1997&amp;rft.isbn=0-8223-1976-4&amp;rft.aulast=Tavuzzi&amp;rft.aufirst=Michael+M.&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DV58f64kc4EQC%26pg%3DPA80&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJanuary+3"></span></span>