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At the beginning of the 14th century, Saint-Omer was one of the largest and wealthiest towns in Europe.
Saint-Omer, for a long time a major stronghold between France and Flanders, has kept many elements of its fortified heritage.
The 10th century castle mound and the remains of the great outer walls from 1200 are both still visible.
In the 16th and 17th centuries, under the direction of Vauban, a range of fortification campaigns followed, in response to changes in weaponry.
You can also discover the other remains in Saint-Omer’s land of art and history: castle mounds, walls, churches and fortified farms.