The attempt to install <a href="https://en.wikipedia.org/wiki/Lady_Jane_Grey" id="mwSg" rel="mw:WikiLink" title="Lady Jane Grey">Lady Jane Grey</a> as <a href="https://en.wikipedia.org/wiki/Queen_regnant" id="mwSw" rel="mw:WikiLink" title="Queen regnant">Queen of England</a>   collapses after only nine days.