<a href="https://en.wikipedia.org/wiki/Pope_Stephen_I" id="mwFA" rel="mw:WikiLink" title="Pope Stephen I">Pope Stephen I</a> succeeds <a href="https://en.wikipedia.org/wiki/Pope_Lucius_I" id="mwFQ" rel="mw:WikiLink" title="Pope Lucius I">Pope Lucius I</a>, becoming the <a href="https://en.wikipedia.org/wiki/List_of_popes" id="mwFg" rel="mw:WikiLink" title="List of popes">23rd</a> <a href="https://en.wikipedia.org/wiki/Pope" id="mwFw" rel="mw:WikiLink" title="Pope">pope</a> of the <a href="https://en.wikipedia.org/wiki/Catholic_Church" id="mwGA" rel="mw:WikiLink" title="Catholic Church">Catholic Church</a>, and immediately takes a stand against <a href="https://en.wikipedia.org/wiki/Novatianism" id="mwGQ" rel="mw:WikiLink" title="Novatianism">Novatianism</a>.<sup about="#mwt17" 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="./May_12#cite_note-1" id="mwGg" style="counter-reset: mw-Ref 1;"><span class="mw-reflink-text" id="mwGw">[1]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-1"><cite about="#mwt14" class="citation book cs1" id="CITEREFKellyWalsh2010">Kelly, J.N.D.; Walsh, Michael J. (2010). <a class="external text" href="https://books.google.com/books?id=uVmcAQAAQBAJ" id="mwBYQ" rel="mw:ExtLink nofollow"><i id="mwBYU">Oxford Dictionary of Popes</i></a>. Oxford, UK: Oxford University Press. p.<span id="mwBYY" typeof="mw:Entity"> </span>16. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBYc" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBYg" typeof="mw:Entity"> </span><a href="./Special:BookSources/9780192820853" id="mwBYk" rel="mw:WikiLink" title="Special:BookSources/9780192820853"><bdi id="mwBYo">9780192820853</bdi></a>.</cite><span about="#mwt14" class="Z3988" id="mwBYs" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Oxford+Dictionary+of+Popes&amp;rft.place=Oxford%2C+UK&amp;rft.pages=16&amp;rft.pub=Oxford+University+Press&amp;rft.date=2010&amp;rft.isbn=9780192820853&amp;rft.aulast=Kelly&amp;rft.aufirst=J.N.D.&amp;rft.au=Walsh%2C+Michael+J.&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DuVmcAQAAQBAJ&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AMay+12"></span></span>