Heilbronn is a city in northern Baden-Württemberg, Germany, surrounded by Heilbronn District. With over 126,000 residents, it is the sixth-largest city in the state. From the late Middle Ages, it developed into an important trading centre. At the beginning of the 19th century, Heilbronn became one of the centres of early industrialisation in Württemberg. Heilbronn’s old town was completely destroyed during the air raid of 4 December 1944 and rebuilt in the 1950s. Today Heilbronn is the economic centre of the Heilbronn-Franken region. Heilbronn is known for its wine industry and is nicknamed Käthchenstadt, after Heinrich von Kleist’s Das Käthchen von Heilbronn. Full HD.