Roman Emperor <a href="https://en.wikipedia.org/wiki/Constantine_the_Great" id="mwIw" rel="mw:WikiLink" title="Constantine the Great">Constantine the Great</a> elevates his youngest son <a href="https://en.wikipedia.org/wiki/Constans" id="mwJA" rel="mw:WikiLink" title="Constans">Constans</a> to the rank of <i id="mwJQ"><a href="https://en.wikipedia.org/wiki/Caesar_(title)" id="mwJg" rel="mw:WikiLink" title="Caesar (title)">Caesar</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="./December_25#cite_note-3" id="mwJw" style="counter-reset: mw-Ref 3;"><span class="mw-reflink-text" id="mwKA">[3]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-3"><cite about="#mwt22" class="citation book cs1" id="CITEREFJonesJ.R._MartindaleJ._Morris1971"><a href="./A._H._M._Jones" id="mwCD8" rel="mw:WikiLink" title="A. H. M. Jones">Jones, A.H.M.</a>; <a href="./John_Robert_Martindale" id="mwCEA" rel="mw:WikiLink" title="John Robert Martindale">J.R. Martindale</a> &amp; <a href="./John_Morris_(historian)" id="mwCEE" rel="mw:WikiLink" title="John Morris (historian)">J. Morris</a> (1971). <a class="external text" href="https://books.google.com/books?id=uOHw4idqAeYC" id="mwCEI" rel="mw:ExtLink nofollow"><i id="mwCEM">The Prosopography of the Later Roman Empire Volume 1: A.D. 260–395</i></a>. Cambridge University Press. p.<span id="mwCEQ" typeof="mw:Entity"> </span>220. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwCEU" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwCEY" typeof="mw:Entity"> </span><a href="./Special:BookSources/0-521-07233-6" id="mwCEc" rel="mw:WikiLink" title="Special:BookSources/0-521-07233-6"><bdi id="mwCEg">0-521-07233-6</bdi></a>.</cite><span about="#mwt22" class="Z3988" id="mwCEk" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=The+Prosopography+of+the+Later+Roman+Empire+Volume+1%3A+A.D.+260%E2%80%93395&amp;rft.pages=220&amp;rft.pub=Cambridge+University+Press&amp;rft.date=1971&amp;rft.isbn=0-521-07233-6&amp;rft.aulast=Jones&amp;rft.aufirst=A.H.M.&amp;rft.au=J.R.+Martindale&amp;rft.au=J.+Morris&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DuOHw4idqAeYC&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ADecember+25"></span></span>