<a href="https://en.wikipedia.org/wiki/Roman_emperor" id="mwEQ" rel="mw:WikiLink" title="Roman emperor">Roman emperor</a> <a href="https://en.wikipedia.org/wiki/Caracalla" id="mwEg" rel="mw:WikiLink" title="Caracalla">Caracalla</a> is assassinated and is succeeded by his <a href="https://en.wikipedia.org/wiki/Praetorian_Guard" id="mwEw" rel="mw:WikiLink" title="Praetorian Guard">Praetorian Guard</a> <a href="https://en.wikipedia.org/wiki/Prefect" id="mwFA" rel="mw:WikiLink" title="Prefect">prefect</a>, <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Marcus_Opellius_Macrinus" id="mwFQ" rel="mw:WikiLink" title="Marcus Opellius Macrinus">Marcus Opellius Macrinus</a>.<sup about="#mwt15" 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="./April_8#cite_note-1" id="mwFg" style="counter-reset: mw-Ref 1;"><span class="mw-reflink-text" id="mwFw">[1]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-1"><cite about="#mwt12" class="citation book cs1" id="CITEREFAndo2012">Ando, Clifford (2012). <a class="external text" href="https://books.google.com/books?id=2fTcCQAAQBAJ" id="mwBxY" rel="mw:ExtLink nofollow"><i id="mwBxc">Imperial Rome AD 193 to 284: The Critical Century</i></a>. Edinburgh: Edinburgh University Press. pp.<span id="mwBxg" typeof="mw:Entity"> </span>62–63. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBxk" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBxo" typeof="mw:Entity"> </span><a href="./Special:BookSources/9780748620500" id="mwBxs" rel="mw:WikiLink" title="Special:BookSources/9780748620500"><bdi id="mwBxw">9780748620500</bdi></a>.</cite><span about="#mwt12" class="Z3988" id="mwBx0" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Imperial+Rome+AD+193+to+284%3A+The+Critical+Century&amp;rft.place=Edinburgh&amp;rft.pages=62-63&amp;rft.pub=Edinburgh+University+Press&amp;rft.date=2012&amp;rft.isbn=9780748620500&amp;rft.aulast=Ando&amp;rft.aufirst=Clifford&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3D2fTcCQAAQBAJ&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AApril+8"></span></span>