<a href="https://en.wikipedia.org/wiki/Holy_Roman_Emperor" id="mwNA" rel="mw:WikiLink" title="Holy Roman Emperor">Holy Roman Emperor</a> <a href="https://en.wikipedia.org/wiki/Henry_IV,_Holy_Roman_Emperor" id="mwNQ" rel="mw:WikiLink" title="Henry IV, Holy Roman Emperor">Henry<span id="mwNg" typeof="mw:Entity"> </span>IV</a> is forced to abdicate in favor of his son, <a href="https://en.wikipedia.org/wiki/Henry_V,_Holy_Roman_Emperor" id="mwNw" rel="mw:WikiLink" title="Henry V, Holy Roman Emperor">Henry<span id="mwOA" typeof="mw:Entity"> </span>V</a>, in <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Ingelheim" id="mwOQ" rel="mw:WikiLink" title="Ingelheim">Ingelheim</a>.<sup about="#mwt35" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-5"}}' id="cite_ref-5" rel="dc:references" typeof="mw:Extension/ref"><a href="./December_31#cite_note-5" id="mwOg" style="counter-reset: mw-Ref 5;"><span class="mw-reflink-text" id="mwOw">[5]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-5"><cite about="#mwt32" class="citation book cs1" id="CITEREFRobinson2003">Robinson, I. S. (2003) [1999]. <i id="mwB3U">Henry IV of Germany, 1056–1106</i>. Cambridge University Press. p.<span id="mwB3Y" typeof="mw:Entity"> </span>336. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwB3c" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwB3g" typeof="mw:Entity"> </span><a href="./Special:BookSources/0-521-54590-0" id="mwB3k" rel="mw:WikiLink" title="Special:BookSources/0-521-54590-0"><bdi id="mwB3o">0-521-54590-0</bdi></a>.</cite><span about="#mwt32" class="Z3988" id="mwB3s" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Henry+IV+of+Germany%2C+1056%E2%80%931106&amp;rft.pages=336&amp;rft.pub=Cambridge+University+Press&amp;rft.date=2003&amp;rft.isbn=0-521-54590-0&amp;rft.aulast=Robinson&amp;rft.aufirst=I.+S.&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ADecember+31"></span></span>