an Entity references as follows:
Rottweil is a Landkreis (district) in the middle of Baden-Württemberg, Germany. It is part of the Schwarzwald-Baar-Heuberg region in the Breisgau-Hochschwarzwald regional district. Neighboring districts are (from north clockwise) Freudenstadt, Zollernalbkreis, Tuttlingen, Schwarzwald-Baar and Ortenaukreis.