The Corps was enlarged to ten squadrons by the start of the Seven Years' War. Their depot was in Strasbourg, where it remained for a century. On 13 May 1758, the Corps was renamed "Royal carabiniers de monsieur le Comte de Provence". By 1762, the Corps was enlarged to five brigades of thirty squadrons, but was reduced to two regiments in 1788. However, the events of the French Revolution affected all of the French Army and the cavalry Arm in particular, and the carabiniers were reduced to two regiments of four squadrons each, later serving in the Army of the Rhine. The regiments retained their distinctive bearskin headwear until 1810 when it was replaced by even more distinctive helmets with scarlet combs. They were also distinguished by Napoleon with a brass overlay on the iron cuirasses after suffering heavy casualties in the 1809 campaign, but were no longer equipped with carbines. The two Carabiniers regiments, brigaded together and as a part of General of Division Nansouty's 1st Heavy Cavalry Division saw action during the Napoleonic wars, including in the Battle of Austerlitz, Battle of Friedland, Battle of Wagram, Battle of Borodino (commanded by General of Brigade Defrance), Battle of Leipzig, Battle of Laon and Battle of Waterloo. The Carabiniers were restored as a single "régiment de Monsieur" after the second Bourbon restoration.