King <a href="https://en.wikipedia.org/wiki/Æthelred_I_of_Northumbria" id="mwEw" rel="mw:WikiLink" title="Æthelred I of Northumbria">Æthelred I of Northumbria</a> is murdered in <a href="https://en.wikipedia.org/wiki/Coria_(Corbridge)" id="mwFA" rel="mw:WikiLink" title="Coria (Corbridge)">Corbridge</a> by a group led by his <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Ealdormen" id="mwFQ" rel="mw:WikiLink" title="Ealdormen">ealdormen</a>, Ealdred and Wada. The <i id="mwFg">patrician</i> <a href="https://en.wikipedia.org/wiki/Osbald_of_Northumbria" id="mwFw" rel="mw:WikiLink" title="Osbald of Northumbria">Osbald</a> is crowned, but abdicates within 27 days.<sup about="#mwt18" 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_18#cite_note-1" id="mwGA" style="counter-reset: mw-Ref 1;"><span class="mw-reflink-text" id="mwGQ">[1]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-1"><cite about="#mwt15" class="citation book cs1" id="CITEREFKirby2000">Kirby, D. P. (2000). <a class="external text" href="https://books.google.com/books?id=Fzhk_DvzqSkC&amp;pg=PA131" id="mwBPY" rel="mw:ExtLink nofollow"><i id="mwBPc">The Earliest English Kings</i></a>. Psychology Press. p.<span id="mwBPg" typeof="mw:Entity"> </span>131. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBPk" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBPo" typeof="mw:Entity"> </span><a href="./Special:BookSources/978-0-415-24210-3" id="mwBPs" rel="mw:WikiLink" title="Special:BookSources/978-0-415-24210-3"><bdi id="mwBPw">978-0-415-24210-3</bdi></a>.</cite><span about="#mwt15" class="Z3988" id="mwBP0" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=The+Earliest+English+Kings&amp;rft.pages=131&amp;rft.pub=Psychology+Press&amp;rft.date=2000&amp;rft.isbn=978-0-415-24210-3&amp;rft.aulast=Kirby&amp;rft.aufirst=D.+P.&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DFzhk_DvzqSkC%26pg%3DPA131&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AApril+18"></span></span>