What is the official language of the place where Regensberg was a family of counts from?
Regensberg family Regensberg was a family of counts from the Canton of Zürich in Switzerland. The family had possessions in the medieval Zürichgau from the probably mid-11th century and became extinct in 1331 AD. With the extinction of the male line, the city republic of Zürich laid claim to the Regensberg lands and formed the "Herrschaft Regensberg" respectively "Äussere Vogtei".
Kingdom of Bohemia The Kingdom of Bohemia, sometimes in English literature referred to as the Czech Kingdom (Czech: "České království" ; German: "Königreich Böhmen" ; Latin: "Regnum Bohemiae" , sometimes Latin: "Regnum Czechorum" ), was a medieval and early modern monarchy in Central Europe, the predecessor of the modern Czech Republic. It was an Imperial State in the Holy Roman Empire, and the Bohemian king was a prince-elector of the empire. The kings of Bohemia, besides Bohemia, ruled also the Lands of the Bohemian Crown, which at various times included Moravia, Silesia, Lusatia and parts of Saxony, Brandenburg and Bavaria.