Even the Romans had set up a fortress in Constance. Up from the 6th century till 1827 there were bishops in Constance. During the late Middle Ages the production and the trade of textiles were very important for Constance. There were close trade ties with towns in northern Italy. Thus Constance became a town of international importance for some time. The building "Konzil" (finished in 1391) still gives an impression of the economic prosperity of Constance in the Middle Ages.

From 1414 to 1418 the 16th church council took place in Constance. 1415 Jan Hus was murdered in Constance, 1417 a new pope, Martin the 5th was elected in Constance. In the second half of the 15th century the economic importance of Constance declined strongly.

Traces of the medieval Constance

The historic center of Constance was not destroyed during the Second World War, because the border with the swiss neighbour town Kreuzlingen is in the middle of the city center. Especially the "Niederburg" with it's narrow streets still reminds visitors of the Middle Ages.