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.