To appease Prussia, which had also lost access to the Meuse after the Congress of Vienna, the Dutch province of Limburg (but not the cities of Maastricht and Venlo because without them Limburg's population equalled that of the Province of Luxembourg, 150,000 ), was joined to the German Confederation between September 5, 1839 and August 23, 1866 as Duchy of Limburg.
Untuk menenangkan Prusia, yang juga kehilangan akses ke Meuse setelah Kongres Wina, provinsi Belanda di Limburg (tapi bukan kota Maastricht dan Venlo karena tanpa mereka, penduduk Limburg menyamai penduduk Provinsi Luksemburg, 150.000 orang (), tergabung dalam Konfederasi Jerman antara 5 September 1839 dan 23 Agustus 1866 sebagai Kadipaten Limburg.