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Origin and history

The site of La Mothe-en-Bassigny, on top of the communes of Outremécourt and Soulaucourt-sur-Mouzon (Haute-Marne), was a major citadel of the Duchy of Lorraine. Founded in 1258 by Thiébaut II de Bar on a strategic promontory at 506 m above sea level, it became after Nancy the most powerful city in Lorraine, housing up to 4,000 inhabitants. In 1506 and 1580 it was a commercial and military centre for the drafting of the Bassigny custom.

During the Thirty Years' War, La Mothe fiercely resisted French troops. In 1634, after 141 days of siege, she fell under the orders of Richelieu, despite the heroic death of his governor Antoine d'Isches. Back in 1641, it was taken over in 1642 and besieged again in 1644. The final siege (1644-1645), marked by the pioneering use of bombs in Europe, ended with its surrender on 1 July 1645 after 205 days of resistance.

Contrary to the agreements, Mazarin ordered the total destruction of the city, killing 3,000 inhabitants. This bag sealed the end of Lorraine as a sovereign state and became a symbol of Lorrain resistance. The site, classified as a historic monument in 1923 and 2001, now houses forest ruins and a memorial inaugurated in 1897. An association has been working since 2005 to preserve it.

The Mothe illustrates the Franco-Lorrain tensions of the 17th century. Its decline marked a political turning point: the Dukes of Lorraine lost their autonomy, preparing for attachment to France in 1766. The 19th century departmental division deliberately integrated its ruins in the Haute-Marne (Champagne), neutralizing a potentially subversive symbol.

The remains, protected in a Natura 2000 reserve, recall an innovative military architecture: bastioned enclosures from the 1540s, doubled in the 17th century. The excavations and archives (deliberations, poems, stories of sieges) document an intense urban life, between fairs, seine floor and garrisons, before the destruction of 1645.

The memory of La Mothe continues through literary works (poem of Alcide Marot, historical novels) and commemorations. His history, taught as an example of resistance and repression, remains a Lorraine identity marker, between regional pride and national integration.

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