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 Frisians The West Frisians (German: "Westfriesen" ) – or, more precisely, the Westlauwers Frisians – are those Frisian peoples in that part of Frisia administered by the Netherlands: the Province of Friesland, which is bounded in the west by the IJsselmeer and in the east by the River Lauwers (hence the name "Westlauwers", i.e., "west of the Lauwers").