Rettbach (Rot) is a river of Thuringia, a federal state in the central of which country?
Thuringia The Free State of Thuringia ( ; German: "Freistaat Thüringen" , ] ) is a federal state in central Germany.
Landshut Landshut (Bavarian: "Landsad" ) is a town in Bavaria in the south-east of Germany, belonging to both Eastern and Southern Bavaria. Situated on the banks of the River Isar, Landshut is the capital of Lower Bavaria, one of the seven administrative regions of the Free State of Bavaria. It is also the seat of the surrounding district, and has a population of more 70,000. Landshut is the largest city in Lower Bavaria, followed by Passau and Straubing, and Eastern Bavaria's second biggest city.