
King of France and Navarre
"Après moi, le déluge. (After me, the flood.)"
Louis XV entered the war opportunistically, seeing Charles VI's death as a chance to dismember the Habsburg empire and assert French primacy in Europe. He had the finest army and the finest marshal (Saxe) in Europe — and yet at Aix-la-Chapelle he returned all his conquests in exchange for essentially nothing, a diplomatic humiliation remembered as bête comme la paix (stupid as the peace). His failure to capitalize on military success accelerated the decline of royal prestige that his grandson Louis XVI would pay for with his head.
Did you know?
Louis XV was personally present at Fontenoy — he watched the battle with his son the Dauphin and became one of the last French kings to observe a major victory in person
February 22, 1744 · 3,000 total casualties
Toulon was a British tactical failure that nonetheless led to a celebrated court-martial drama: Mathews was cashiered for breaking the line, while his more cautious subordinate Lestock was acquitted, prompting a rethinking of British naval doctrine. The escape of the Franco-Spanish fleet freed France to project power in the Mediterranean.
May 11, 1745 · 22,000 total casualties
Fontenoy was the greatest French military triumph of the 18th century and made Maurice de Saxe a legend. The Irish Brigade's charge — 'Cuimhnigí ar Luimneach agus ar fheall na Sasanach' (Remember Limerick and Saxon treachery) — became a defining moment of Irish diaspora history. France took Ghent, Bruges, and Oudenaarde within weeks.
October 11, 1746 · 10,000 total casualties
Rocoux extended French control across most of the Austrian Netherlands and confirmed Saxe's dominance of the western theater. Despite Frederick's exit from the war, France continued to accumulate territorial leverage for the eventual peace negotiations.
July 2, 1747 · 14,000 total casualties
Lauffeld was Saxe's final and perhaps most complete victory. After it, Britain, the Netherlands, and Austria were militarily exhausted and had lost leverage for any favorable peace terms. The path to Aix-la-Chapelle was now open — France negotiated from a position of total battlefield supremacy.
February 15, 1710
🌅 Birth
Born at Versailles
1723
📍 Posting
Assumes personal rule of France at age 13
May 11, 1745
⚔️ Battle
Watches Battle of Fontenoy with the Dauphin — greatest French military triumph
May 10, 1774
✝️ Death
Dies of smallpox at Versailles