French sympathy for the Poles was so keen that, in July, Talleyrand was again instructed to invite the English government to join with France in proposing “a mediation in the bloody struggle raging in Poland.” Palmerston, in reply, appears to have suggested that the French government should set forth its views upon the matter in writing. Talleyrand, accordingly, transmitted this request and, at the same time, begged Sébastiani to remember, when framing his proposals, that “he was dealing with cold-blooded people and that it would be well therefore to avoid the use of emotional language.” But, on July 22, Palmerston informed him that the Cabinet could not entertain the suggestion of addressing to Russia any demand for a cessation of hostilities, nor was he able to report better success when, in September, whilst the Belgian difficulty was at its height, he was once more directed to approach the British government upon the subject of Poland. “No party in the Parliament,” he wrote, “was in favour of intervention, and the newspapers merely spoke of the Poles in sympathetic language.”[166] Heytesbury, who at St. Petersburg was in a position to judge correctly of the national resentment which any attempt at foreign interference in Polish affairs would create, strove to convince his government of the unwisdom of impairing the good relations of Russia and England by raising a question in which no British interests were involved. Remonstrances, he was prepared to admit, might effect an improvement in the condition of the people of the Kingdom of Poland. But, even under these circumstances, the sum of human misery, which the rebellion must entail, would not be lessened, inasmuch as the revolted Russo-Polish provinces, not included in the Kingdom, would be treated with increased severity.[167]

But, with the complete suppression of the insurrection, Lord Grey and his colleagues assumed a more sympathetic attitude towards the vanquished Poles. In a closely reasoned despatch Palmerston, on November 23, formulated the arguments which Heytesbury was instructed to press upon the Cabinet of St. Petersburg. The most important passage in this long document was that in which the interpretation was set forth which the English government placed upon the wording of the treaty of Vienna. The futility of the plea that no specific constitution had been guaranteed to Poland, a contention which Heytesbury had warned his chief the Russian government would certainly set up, was clearly exposed. “Surely,” wrote Palmerston, “it was no forced construction of the meaning of the treaty to consider the constitution, which the Emperor had given, as existing under the sanction of the treaty.” The constitution contained no clause reserving to the Sovereign the right of modifying its provisions. The action of the Poles in declaring themselves separated from Russia could not be held to absolve the Emperor from adhering to his compact. “Wrongs committed by one side,” he concluded, “were not to be punished by the commission of wrongs on the other.”[168]

Heytesbury, after prefacing his disagreeable task of communicating these instructions by assurances that his government was only desirous of tendering friendly advice to a former ally, proceeded to read out to Count Nesselrode Lord Palmerston’s despatch. “The Count,” he reported, “listened with great attention and in silence, but his silence was not the silence of assent.” The Russian Chancellor expressed his regret that the British government should have seen fit to make representations of this nature, notwithstanding the intimation, conveyed to it by Prince Lieven, that the Tsar could not admit of foreign interference in the Polish question. The official answer of the Imperial Cabinet was in due course communicated to Palmerston by the Russian ambassador. As Heytesbury had foreseen, Nicholas, “strong in the support of Austria and Prussia and in the unanimous approbation of the Russian nation,”[169] refused to adopt the interpretation of the treaty which it was desired to place upon it in London and in Paris.

In the meantime, important progress had been made towards a settlement of the Belgian question. At the end of August, Baron Stockmar, Leopold’s confidential adviser, proceeded to London to watch over his interests in conjunction with Van de Weyer, the Belgian minister at the Court of St. James’. Stockmar realized speedily that the Belgians would have to suffer for the defeat inflicted upon them by the Dutch. In the treaty of peace and separation, which the conference was resolved must be concluded without delay, they could not hope to obtain the favourable terms conceded to them in the convention of the eighteen articles. Should they refuse to agree to the necessary concessions, Palmerston warned him that the conference would be broken up, and the King of Holland would be left free to fight out his quarrel with Leopold. Stockmar, however, continually impressed upon his master that this was a threat which he could safely afford to disregard. The French had always considered the union of Holland and Belgium and the creation of the Kingdom of the Netherlands as a diplomatic combination directed against them. Public opinion in France might, therefore, be depended upon to compel the government to resist any attempt on the part of the Dutch to reconstitute the kingdom by force of arms. But, although he admitted that Leopold could only expect active assistance from France, Stockmar strongly deprecated the idea of using French intervention as a means of intimidating the conference. Such a course, he was convinced, would simply incline the four Powers to lean all the more towards Holland. Lords Grey and Palmerston were well disposed, but they had to reckon with national sentiment, which was more favourable to “England’s ancient allies,” the Dutch, than to the Belgians. Nevertheless, although the British government might be unable to render him practical assistance, Leopold, Stockmar considered, should strive to gain its moral support. The prolonged occupation of Belgium by the French was to be deplored, because it engendered the suspicion in London that the King was over-anxious to place himself under the protection of France. In order effectually to put a check upon both Dutch and French intrigues Leopold, in Stockmar’s opinion, would be well advised to propose for the hand of a daughter of Louis Philippe.

After the French evacuation Stockmar urged unceasingly the necessity of a speedy conclusion of a definite treaty of peace. Russia, he pointed out, was no longer distracted by the Polish rebellion, and the sympathies of the Tsar were entirely with the King of the Netherlands. This was a circumstance bound to have a considerable influence upon the policy of the Courts of Berlin and of Vienna. It was of the highest importance, therefore, that Leopold should bring his ministers and the Chambers to recognize that the conditions of separation, set forth in the protocol of the eighteen articles, could no longer be obtained, and that only those stipulations should be insisted upon which were essential to the independent existence of Belgium. As Stockmar had foreseen, the new treaty, known as that of the twenty-four articles, which the conference proceeded to frame, imposed harsher terms upon Belgium than those contained in the protocol of June 26. That part of the province of Limburg which lay upon the right bank of the Meuse was now assigned to Holland, and Belgium was called upon to contribute an increased share of the public debt of the two countries. In other respects also the Belgians had to suffer for their military inferiority to the Dutch. Nevertheless, when all efforts to induce the conference to modify its terms had proved useless, Stockmar, scouting the notion of abdication, counselled Leopold to agree to them. “Let the King,” he wrote, “cry aloud against the injustice which has been done him . . . Let him show that he went to Belgium under perfectly different conditions . . . Let the Belgian ministry cry out equally loud. But in the meantime let everything be done to induce the Chambers to accept the treaty.”

Leopold having let it be known that, were the deputies to refuse to agree to the terms imposed by the conference, he would be driven to abdicate, the Chambers, on November 3, authorized him to conclude a formal treaty of peace and separation upon the basis of the twenty-four articles. This document was accordingly signed in London, on November 15, 1831, by the plenipotentiaries of Belgium and of the five great Powers. The King of Holland refused to be a party to the agreement, but, before the expiration of the armistice, he had been warned that any act of hostility against Belgium would be treated as a declaration of war against the Powers. In addition, by a supplementary article, the contracting parties guaranteed to Belgium the execution of the treaty. Ratifications, it was laid down, were to be exchanged within the space of two months.[170] At various periods during these negotiations Talleyrand had experienced considerable difficulty in persuading the French government to agree to the decisions of the conference. When at last it had reluctantly given its assent to the conditions of separation he was at pains to show the advantages which France would derive from the treaty. The Duchy of Bouillon, he pointed out, no longer formed part of the Duchy of Luxemburg, whilst the incorporation of Arlon with Belgium increased the strength of the French frontier towards Longwy. Furthermore, the cession of half of the Duchy of Luxemburg to Belgium placed the Germanic Confederation at a greater distance from France and, inasmuch as the fortress was no longer to form part of a military system,[171] it would cease to have any importance. With regard to the repartition of the debt, which the French government had objected to as pressing unduly upon Belgium, Talleyrand contended that the general interests of Europe urgently demanded a settlement of the whole question, and that the Belgians, after their wretched display in the summer, had been treated with more generosity than they had any right to expect.[172]

Whilst the conference had been framing the conditions of separation between Holland and Belgium, the French government had brought forward a scheme for a general disarmament. Sébastiani in the summer had proposed a reduction of establishments to a normal peace footing, but had found that the German Powers were unwilling to revert to ordinary conditions of military strength, until the Polish insurrection should be at an end. After the Russian entry in Warsaw, however, the French overtures met with a ready response. The continental Powers agreed to begin disarming on January 1, 1832, and to proceed until their armies should be reduced to their peace establishments. Inasmuch as England had not added to her naval or land forces she could not enter into an agreement to disarm, but Lord Granville was instructed to communicate to Sébastiani the satisfaction which so practical a manifestation of peaceful intentions afforded to the British government.[173]

The question of the demolition of the barrier fortresses had been proceeding side by side with the settlement of the conditions under which Belgium was to be separated from Holland. Talleyrand, however, was not admitted to these negotiations which were conducted between the plenipotentiaries of Great Britain, Austria, Russia and Prussia and those of Belgium. The result of their deliberations was embodied in a document, known as the Fortress Convention, which was signed by the representatives of the five Powers concerned on December 14, 1831. When La Tour-Maubourg had been sent to Brussels, during the French occupation of Belgium, he had been instructed to press for the demolition of the fortifications of Ath, Mons, Menin, Charleroi and Tournay. The Powers, however, elected to preserve the defences of the two last-named towns and to dismantle in their place the works of Philippeville and Marienburg. Palmerston, without doubt, was mainly responsible for this decision which was to create great dissatisfaction in Paris. He was resolved, under no circumstance, to admit the principle of allowing France to have a voice in determining which of the fortresses, erected at the expense of the four Powers, should be destroyed. After her attempts to arrive at a separate understanding with Belgium concerning them, he may have thought that she required to be reminded of the true state of the case. Yet it would appear that the mere fact that her plenipotentiary had not appended his signature to the convention must have made her position in the matter sufficiently clear to the world. But, in persuading the members of the conference to substitute Philippeville and Marienburg for Charleroi and Tournay, Palmerston was not actuated by a desire wantonly to slight France. In the question of the destruction of the Belgian fortresses Grey’s Cabinet was in a very delicate position as regards the Parliament.[174] An embittered opposition was bound to demand to know on what grounds the government proposed to justify its policy of sanctioning the demolition of fortifications, which the greatest captain of the day had pronounced to be necessary to the security of Europe. Now Wellington, it would appear, considered Charleroi and Tournay as of more importance to the defence of Belgium than Philippeville and Marienburg, and Lord Grey and his colleagues could not afford to disregard his opinion. It must be remembered also that, on several occasions during the course of the negotiations, France had shown a strong desire to regain possession of these two places of which she had been deprived after Waterloo, and it was hoped that, were their fortifications to be demolished, they would cease to offer the same attractions to her.[175]

Without doubt the decision of the Powers to deprive France of any voice in the settlement of the question of the fortresses placed her in a very anomalous position. She was a party to the treaty which established the independence, defined the frontiers and guaranteed the neutrality of Belgium, nevertheless Austria, Prussia, Russia and Great Britain had proceeded to conclude at once a separate convention with Belgium against her. By her own action, however, she was debarred from bringing forward this aspect of the case as an argument against her exclusion from the fortress agreement. Far from raising any objections to the conduct of the four Powers in drawing up the protocol of April 17, without consultation with her, she had expressed the greatest satisfaction with its contents. At her request it was communicated to her officially, in order that an allusion might be made to it in the Speech from the Throne. Louis Philippe, in opening the Parliament on July 23, 1831, accordingly announced the early destruction of the barrier fortresses, as a proof that the four Powers had abandoned the system established against France in 1815. In point of fact the apprehensions of her aggressive spirit had been intensified by the Revolution of July and, in deciding to demolish some of the frontier defences of the Low Countries, the Powers had not been actuated by any desire to propitiate the new régime. But once the partition of the Kingdom of the Netherlands had been accomplished, it was recognized that the Belgians alone could not keep in repair and efficiently defend the twenty-three barrier fortresses. Ill-equipped and insufficiently garrisoned they would not have contributed to the protection of Belgium, but would have offered a constant temptation to the French to lay hands upon them. If France, however, chose to imagine that in this matter the policy of the Powers was dictated by a desire to please her, it was unnecessary to inform her that she was labouring under a delusion. It was probably the knowledge that the fiction contained in the paragraph of the King’s Speech, referring to the fortresses, could not be maintained for long, which had induced the French government to attempt to negotiate a separate agreement with Belgium.[176]