Mercurius becomes <a href="https://en.wikipedia.org/wiki/Pope_John_II" id="mwIg" rel="mw:WikiLink" title="Pope John II">Pope John II</a>, the first <a href="https://en.wikipedia.org/wiki/Pope" id="mwIw" rel="mw:WikiLink" title="Pope">pope</a> to adopt a new name upon elevation to the papacy.<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_2#cite_note-3" id="mwJA" style="counter-reset: mw-Ref 3;"><span class="mw-reflink-text" id="mwJQ">[3]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-3"><cite about="#mwt22" class="citation encyclopaedia cs1" id="CITEREFMann1910">Mann, Horace K. (1910). "Pope John II". <i id="mwBtc">Catholic Encyclopedia</i>.</cite><span about="#mwt22" class="Z3988" id="mwBtg" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.atitle=Pope+John+II&amp;rft.btitle=Catholic+Encyclopedia&amp;rft.date=1910&amp;rft.aulast=Mann&amp;rft.aufirst=Horace+K.&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJanuary+2"></span></span>