Alexander, Duke of Leuchtenberg
... that several days after Nicholas II's abdication, his relative Alexander, Duke of Leuchtenberg warned the British ambassador the tsar was in "the gravest danger"?
... that several days after <a class="mw-redirect" href="./Nicholas_II_of_Russia" id="mwGCc" rel="mw:WikiLink" title="Nicholas II of Russia">Nicholas<span id="mwGCg" typeof="mw:Entity"> </span>II</a>'s <a href="./Abdication" id="mwGCk" rel="mw:WikiLink" title="Abdication">abdication</a>, his relative <b id="mwGCo"><a href="./Alexander_Georgievich,_7th_Duke_of_Leuchtenberg" id="mwGCs" rel="mw:WikiLink" title="Alexander Georgievich, 7th Duke of Leuchtenberg">Alexander, Duke of Leuchtenberg</a></b> warned the <a href="./Great_Britain" id="mwGCw" rel="mw:WikiLink" title="Great Britain">British</a> ambassador the tsar was in "the gravest danger"?