In 1200, Freiburg's population numbered approximately 6,000 people.At about that time, under the rule of Bertold V, the last duke of Zähringen, the city began construction of its Freiburg Münster cathedral on the site of an older parish church.
Thus, it is likely that the name of this place means a "fortified town of free citizens".
This town was strategically located at a junction of trade routes between the Mediterranean Sea and the North Sea regions, and the Rhine and Danube rivers.
) is a city in Baden-Württemberg, Germany with a population of about 220,000.
In the south-west of the country, it straddles the Dreisam river, at the foot of the Schlossberg.
Begun in the Romanesque style, it was continued and completed 1513 for the most part as a Gothic edifice.