Bretten is a town in the state of Baden-Württemberg, Germany. It is located on Bertha Benz Memorial Route. Geography Bretten lies in the centre of a rectangle that's formed by Heidelberg, Karlsruhe, Heilbronn and Stuttgart as corners. It has a population of approximately 28,000. The centre of Bretten consists of many old half-timbered houses around a lively marketplace. Towns and villages under the administration of Bretten include Bauerbach, Büchig, Diedelsheim, Dürrenbüchi… (More on Bretten)