The Danube Swabians is the ethnic German-speaking population, today largely extinct through emigration, which lived in the Kingdom of Hungary in east-central Europe, especially in the Danube River valley, first in the 12th century, and in greater numbers in the 17th and 18th centuries. Most were descended from earlier 18th-century Swabian settlers from Upper Swabia, the Swabian Jura, northern Lake Constance, the upper Danube, the Swabian-Franconian Forest, the Southern Black Forest and the Principality of Fürstenberg, followed by Hessians, Bavarians, Franconians and Lorrainers recruited by Austria to repopulate the area and restore agriculture after the expulsion of the Ottoman Empire. They were able to keep their language and religion and initially developed strongly German communities in the region which retained the German language, customs, and folklore.