Green Park tube station
... that the Queen and Prince Charles each travelled on London Underground trains from Green Park tube station when they carried out the official openings of the Victoria and Jubilee lines?
... that <a href="./Elizabeth_II" id="mwKg" rel="mw:WikiLink" title="Elizabeth II">the Queen</a> and <a class="mw-redirect" href="./Charles,_Prince_of_Wales" id="mwKw" rel="mw:WikiLink" title="Charles, Prince of Wales">Prince Charles</a> each travelled on <a href="./London_Underground" id="mwLA" rel="mw:WikiLink" title="London Underground">London Underground</a> trains from <b id="mwLQ"><a href="./Green_Park_tube_station" id="mwLg" rel="mw:WikiLink" title="Green Park tube station">Green Park tube station</a></b> when they carried out the official openings of the <a href="./Victoria_line" id="mwLw" rel="mw:WikiLink" title="Victoria line">Victoria</a> and <a href="./Jubilee_line" id="mwMA" rel="mw:WikiLink" title="Jubilee line">Jubilee</a> lines?