<a href="https://en.wikipedia.org/wiki/Henry_VI,_Holy_Roman_Emperor" id="mwIw" rel="mw:WikiLink" title="Henry VI, Holy Roman Emperor">Henry VI</a>, the son and heir of the <a href="https://en.wikipedia.org/wiki/Holy_Roman_Emperor" id="mwJA" rel="mw:WikiLink" title="Holy Roman Emperor">Holy Roman Emperor</a> <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Frederick_I,_Holy_Roman_Emperor" id="mwJQ" rel="mw:WikiLink" title="Frederick I, Holy Roman Emperor">Frederick I</a>, marries <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Constance_of_Sicily" id="mwJg" rel="mw:WikiLink" title="Constance of Sicily">Constance of Sicily</a>.