What is the official language of the place where Regensberg was a family of counts from?
Canton of Zürich The canton of Zürich (German: "Kanton"    ) has a population (as of 31 December 2016 ) of . The canton is located in the northeast of Switzerland and the city of Zürich is the capital of the canton. The official language is German. The local Swiss German dialect called "Züritüütsch" is commonly spoken. In English the name of the canton is often written without an umlaut.
West Frisian language West Frisian, or simply Frisian ("Frysk"; Dutch: "Fries" ] ) is a West Germanic language spoken mostly in the province of Friesland ("Fryslân") in the north of the Netherlands, mostly by those of Frisian ancestry. It is the most widely spoken of the three Frisian languages.