





In the early 13th century, the city decides to build its own system of fortification.
In the early 13th century, the city decides to build its own system of fortification thanks to its recent development. With a lenght of more than 1100 metres, the surrounding wall was flanked with 27 towers, holed by 3 carriage gates (of which the 'porte Beucheresse') and 2 posterns.