adam of bremen anhalt-dessau archbishopric of magdeburg archdiocese of bremen austria austrian empire austro-prussian war bishopric of halberstadt bishopric of hildesheim bishopric of ratzeburg bremen calenberg charlemagne christian ix of denmark counts of schauenburg and holstein county of blankenburg danish language denmark duchy of brunswick duchy of saxony duke of augustenborg eider river elbe electorate of hanover english language ernestine duchies frederick vii of denmark free city of frankfurt german confederation german language germany goslar grand duchy of baden grand duchy of hesse grubenhagen hamburg hesse-homburg hesse-kassel hohenzollern-hechingen hohenzollern-sigmaringen holy roman empire house of hohenzollern house of mecklenburg house of oldenburg house of schwarzburg jutland kiel kingdom of bavaria kingdom of hanover kingdom of illyria kingdom of prussia kingdom of saxony latin liechtenstein low german lower saxon circle luxembourg mecklenburg mecklenburg-schwerin mecklenburg-strelitz napoleonic era nordhausen old saxony personal union peter iii of russia prince-bishop principality of lippe province of schleswig-holstein prussia regenstein reuss elder line reuss junior line saxe-altenburg saxe-coburg-saalfeld saxe-coburg and gotha saxe-gotha-altenburg saxe-lauenburg saxe-meiningen saxe-weimar-eisenach saxons schaumburg schaumburg-lippe schleswig-holstein schwarzburg-rudolstadt schwarzburg-sondershausen states of the german confederation treaty of ribe