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In page Congress of Vienna:

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  • Württemberg – Georg Ernst Levin von Wintzingerode
  • Hanover, then in a personal union with the British crown – Graf Ernst zu Münster. (King George III had refused to recognize the dissolution of the Holy Roman Empire in 1806 and maintained a separate diplomatic staff as Elector of Hanover to conduct the affairs of the family estate, the Duchy of Brunswick-Lüneburg, until the results of the Congress were concluded establishing the Kingdom of Hanover.[citation needed])
  • Mecklenburg-Schwerin – Leopold von Plessen[14]