Saint Laurent is on a major axis in the 15th century, leading from the fortified center of Chalon to Dôle and the Germanic Empire. To access the island, Travelers crossed the Saint Laurent bridge at the time, then under construction. They access the "Grande Rue Saint Laurent" (current "rue de Strasbourg") which, very early, sheltered from inns, where those who, Arrived after closing the city doors, were waiting in the morning to enter it.

A priory, with adjoining church and cemetery then exists; He rubs shoulders with a parliament, who makes the judgments concerning "the Saône wishr" (the county); There have also been a change there since the 13th century.

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