On January 29 Bresson reported his return to Brussels, having performed the journey from the French capital in twenty-five hours. He would appear to have been empowered by Louis Philippe himself to assure the members of the national congress that, were Nemours to be elected, he would be allowed to accept the crown. It is probable, however, that he was instructed only to resort to this step should he find it impossible to oppose Leuchtenberg successfully by other means. It may be inferred that neither Bresson nor Lawoëstine felt any enthusiasm about the election of a Neapolitan Bourbon, and were only too anxious to bestir themselves actively on behalf of a French prince. "Ponsonby supports Leuchtenberg as leading up to the Prince of Orange," wrote Bresson on the day of his return.[81] "The effect of Lord Ponsonby's communication to the congress of the protocol of January 20 has been very great," reported Lawoëstine, who also was back in Brussels. "The only way of preventing the election of the Duc de Leuchtenberg is by bringing forward the Duc de Nemours. Even at the risk of a war with the Powers this course should be adopted. Belgium would be with us heart and soul, and we should begin the campaign in possession of the 23 frontier fortresses, all of which are provided with an immense _matériel_."[82]
On receipt of this news from his agents at Brussels Sébastiani, in order, presumably, to influence the national congress in favour of the French candidate, despatched a letter to Bresson the contents of which were intended for communication to the Belgian deputies. In this document, dated February 1, Sébastiani stated that France could not give her consent to the delimitation of frontiers or to the apportionment of the debt, as laid down in the 11th and 12th protocols of the London conference, unless these conditions should be deemed satisfactory by both the States concerned. The French government, holding that the conference had been convened for purposes of mediation only, could not allow it to assume a different character.[83] On February 3 the Duc de Nemours was elected King of the Belgians, and a deputation started at once for Paris to communicate the news officially to Louis Philippe.