Timeline

Heritage classified

Key figures

Origin and history

The ramparts of Laon originated in the 9th century, with a first fortified enclosure designed to protect the city (eastern part of the plateau). This early fortification played a key role in repelling the Northmen (Vikings) in 882. The enclosure gradually spread westward, encompassing the village, and was completed in the thirteenth century. It combined dry ditches, buttresses, and circular or square towers, all reinforced by four main doors equipped with harrows, assumers and vantals. At its peak, the enclosure was 7,750 steps long (about 11 km), illustrating the strategic importance of Laon in the Middle Ages.

Between the 13th and 17th centuries, the ramparts underwent multiple reconstructions and repairs, adapting their defences to military developments. A major turning point took place in 1595 with the construction of a citadel by engineer Antoine Estienne, marking a modernization of the fortifications. However, as early as the 18th century, their defensive role declined: the ditches were filled to create public walks (Saint-Jean in 1758, Saint-Just in 1761, Saint-Germain in 1763), reflecting an urban transformation towards civilian uses.

In the 19th century, partial restoration was undertaken as part of a fortified belt against invasions from the east. Despite these efforts, much of the ramparts disappeared: out of the 18 original gates, only 3 remain, accompanied by about ten towers (out of an initial quarantine). Today, these remains, classified as Historic Monument in 1927, recall the medieval heritage of Laon, although without interior furnishings. Their present state, between ruins and urban traces, bears witness to the changes of the city over the centuries.

The enclosure of Laon thus embodies a historical stratification: first bulwark against invasions, then symbol of local power, before becoming an element of the urban landscape. Its hybrid architecture (square/circular towers, filled ditches) and fortified doors (now reduced to three copies) make it a remarkable example of an evolutionary medieval fortification, marked by successive adaptations to military and civilian needs.

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