Louis XVI had two surviving younger brothers, and both eventually became kings of France after his death during the French Revolution.

Quick Scoop: His Brothers’ Fates

1. Louis Stanislas Xavier – Louis XVIII

This was Louis XVI’s next younger brother, originally titled the Count of Provence.

  • He supported the monarchy but also had tense relations with Louis XVI and was involved in royalist plotting before and during the Revolution.
  • In 1791, during the royal family’s attempted escape (the Flight to Varennes), he and his wife escaped successfully and fled into exile in the Austrian Netherlands, then moved around Europe (Prussia, Britain, Russia, etc.).
  • After Louis XVI was executed in 1793 and Louis XVI’s son died in captivity, royalists began to recognize him as the legitimate king-in-exile, “Louis XVIII.”
  • When Napoleon fell and the Bourbon monarchy was restored in 1814, Louis XVIII finally returned to France and ruled as king (with a brief interruption during Napoleon’s Hundred Days) until his death on 16 September 1824.
  • He died without children, so the crown passed to his younger brother, the former Count of Artois, who became Charles X.

Think of Louis XVIII as the cautious, political survivor of the family: he waited out revolution and empire in exile, then came back as a constitutional- style Bourbon king.

2. Charles Philippe – Charles X

Louis XVI’s youngest surviving brother was Charles Philippe, originally titled the Count of Artois.

  • Before the Revolution he was seen as more hardline and conservative than Louis XVI, strongly attached to traditional royal authority and aristocratic privilege.
  • Like his brother, he went into exile during the Revolution and spent years moving between allied courts, backing counter‑revolutionary efforts and armies from abroad.
  • After Louis XVIII’s death in 1824, he became king as Charles X, the last Bourbon king of the senior line to actually reign in France.
  • His strongly conservative reign clashed with growing liberal and middle‑class expectations, and after he tried to roll back press freedoms and change electoral rules, a popular uprising in July 1830 (the July Revolution) forced him to abdicate and go back into exile.
  • He spent his final years abroad and died in 1836, far from the France his family had ruled for centuries.

If Louis XVIII was the survivor-operator, Charles X was the nostalgic royal who pushed too hard to turn back the clock and lost his throne in another revolution.

Why this matters now (the “trending topic” angle)

When people today search “what happened to Louis XVI brother” or discuss it on forums, they’re usually curious how any Bourbon actually made it through the Revolution alive and what kind of France they tried to rebuild afterward.

  • One brother (Louis XVIII) shows how old monarchies tried to adapt to a post‑revolutionary world with constitutions and limited power.
  • The other (Charles X) shows the limits of that adaptation, and how pushing reactionary policies could still trigger mass revolt even decades after 1789.

On history forums and Q&A sites, this often turns into debates about whether a more flexible, less reactionary Bourbon monarchy might have survived longer in 19th‑century France, or whether revolution and republicanism were basically inevitable.

In short: Louis XVI’s brothers did not die in the Revolution.
One came back as Louis XVIII and ruled in a cautious, constitutional framework; the other became Charles X, tried to restore more old-school royal power, and was overthrown in 1830.

TL;DR:

  • Louis XVI’s brother Louis Stanislas (Count of Provence) became Louis XVIII, lived years in exile, returned after Napoleon, and ruled France until 1824.
  • His younger brother Charles Philippe (Count of Artois) became Charles X, ruled from 1824 to 1830, was overthrown in the July Revolution, and died in exile.

Information gathered from public forums or data available on the internet and portrayed here.