What is "vogtsburg"

Vogtsburg im Kaiserstuhl is a town in the Kaiserstuhl, a volcanic region in the district Breisgau-Hochschwarzwald, Baden-Württemberg. It has a population of about 5,700 and was created on January 1, 1975 through the unification of seven smaller villages. With its of vineyards, Vogtsburg is the biggest wine producing town in Germany.