"A powerful storm surge was observed at La-Faute-sur-Mer10. Historical archives reported important damage, such as the destruction of seawalls and several saltmarsh flooding. The total cost is estimated at 1.19 million Euros at current currency values, mainly because repairing the dikes took a considerable amount of time. Ré island was seriously flooded8. After the storm, salt production tools were discovered near the forecourt of the church of The Portes en Ré42. According to local parish registers, this storm and its linked marine flooding made a deep impression on coastal families, which lasted for several centuries8. A written source called this event a “hurricane” after Thouars’s bell tower collapsed on the church’s vault: “a stone from the belfry was detached from the top, which fell on the vault of the choir (…) A few minutes after the top of the bell tower crossed the vault of the choir. Half of the bell tower collapsed falling on the arches of the choir and chapel of St. Margaret of Scotland” 43. The accident resulted in one casualty, named as “a beggar”. Similar bell tower damage is also reported in Parthenay, and this storm produced the most important “windthrow” damage of the eighteenth century in Fontainebleau43. This extratropical depression seems to have crossed central France in a SW–NE trajectory, without impacting Brittany. This hypothesis is attested by damage recorded in Fontainebleau forest44."

https://www.nature.com/articles/s41598-020-69069-w