<a href="https://en.wikipedia.org/wiki/Charles_IV,_Holy_Roman_Emperor" id="mwRQ" rel="mw:WikiLink" title="Charles IV, Holy Roman Emperor">Emperor Charles IV</a> assists in laying the <a href="https://en.wikipedia.org/wiki/Cornerstone" id="mwRg" rel="mw:WikiLink" title="Cornerstone">foundation stone</a> of <a href="https://en.wikipedia.org/wiki/Charles_Bridge" id="mwRw" rel="mw:WikiLink" title="Charles Bridge">Charles Bridge</a> in <a href="https://en.wikipedia.org/wiki/Prague" id="mwSA" rel="mw:WikiLink" title="Prague">Prague</a>.