In a personal interview Metternich offered to take him into the government service.
The Diet, which met in 1839, supported the agitation for the release of the prisoners, and refused to pass any government measures; Metternich long remained obdurate, but the danger of war in 1840 obliged him to give way.
Other collections of documents are: - C. von Duerm, Correspondance du Cardinal Consalvi avec le Prince C. de Metternich, 1815 (Louvain and Brussels, 1899) S.
From 1816 to 1818 he was Luxemburg envoy at the German diet, but was recalled, at the instance of Metternich, owing to his too independent advocacy of state constitutions.
To the north-east of Marienbad lies the small watering-place of KOnigswart; near it is a castle belonging since 1618 to the princes of Metternich, which contains an interesting museum, created by the famous Austrian statesman in the first part of the 19th century.