Three days later there was opened in one of the chambers of the Emperor's palace at Vienna a Congress of four nations--Prussia, Russia, Austria, and Sardinia. Detricand's labours had achieved this result at last. Grandjon-Larisse, his old enemy in battle, now his personal friend and colleague in this business, had influenced Napoleon, and the Directory through him, to respect the neutrality of the duchy of Bercy, for which the four nations of this Congress declared. Philip himself little knew whose hand had secured the neutrality until summoned to appear at the Congress, to defend his rights to the title and the duchy against those of Detricand Prince of Vaufontaine. Had he known that Detricand was behind it all he would have fought on to the last gasp of power and died on the battle-field. He realised now that such a fate was not for him-- that he must fight, not on the field of battle like a prince, but in a Court of Nations like a doubtful claimant of sovereign honours. His whole story had become known in the duchy, and though it begot no feeling against him in war-time, now that Bercy was in a neutral zone of peace there was much talk of the wrongs of Guida and the Countess Chantavoine. He became moody and saturnine, and saw few of his subjects save the old Governor-General and his whilom enemy, now his friend, Count Carignan Damour. That at last he should choose to accompany him to Vienna the man who had been his foe during the lifetime of the old Duke, seemed incomprehensible. Yet, to all appearance, Damour was now Philip's zealous adherent. He came frankly repenting his old enmity, and though Philip did not quite believe him, some perverse temper, some obliquity of vision which overtakes the ablest minds at times, made him almost eagerly accept his new partisan. One thing Philip knew: Damour had no love for Detricand, who indeed had lately sent him word that for his work in sending Fouche's men to attempt his capture in Bercy, he would have him shot, if the Court of Nations upheld his rights to the duchy. Damour was able, even if Damour was not honest. Damour, the able, the implacable and malignant, should accompany him to Vienna. The opening ceremony of the Congress was simple, but it was made notable by the presence of the Emperor of Austria, who addressed a few words of welcome to the envoys, to Philip, and, very pointedly, to the representative of the French Nation, the aged Duc de Mauban, who, while taking no active part in the Congress, was present by request of the Directory. The Duke's long residence in Vienna and freedom from share in the civil war in France had been factors in the choice of him when the name was submitted to the Directory by General Grandjon-Larisse, upon whom in turn it had been urged by Detricand.