sentences:  Fearing riots at the announcement of the sentence, De Gaulle ordered that Pétain be immediately transported on the former's private aircraft to Fort du Portalet in the Pyrenees, where he remained from 15 August to 16 November 1945.The government later transferred him to the Fort de Pierre-Levée citadel on the Île d'Yeu, a small island off the French Atlantic coast.Over the following years Pétain's lawyers and many foreign governments and dignitaries, including Queen Mary and the Duke of Windsor, appealed to successive French governments for Pétain's release, but given the unstable state of Fourth Republic politics no government was willing to risk unpopularity by releasing him.