In June 1789 the Royal-Allemand was one of the regiments of the Royal Army summoned to Paris to suppress the growing disturbances in the city, that preceded the outbreak of the
French Revolution. About half of this force was made up of Swiss and German foreign troops, who were considered more dependable in a time of civil unrest than the native born rank and file of the French regular regiments. While the Royal-Allemand was mainly recruited within the borders of France, its German speaking troopers proved willing to act against the Paris population when ordered. On 12 July 1789, a squadron of the regiment, under the command of
Charles Eugene, charged a crowd of demonstrators in the
Tuileries Garden killing one and injuring others. A detachment of the
French Guards, who formed the permanent garrison of Paris and had strong local ties, then fired on the cavalrymen of the Royal-Allemand. The regiment was subsequently withdrawn from Paris and returned to its frontier garrison. While desertions from both French and foreign regiments were running at a high rate during the revolutionary disorders of 1789, the Royal-Allemand lost only three men during this period. In part this appears to have occurred because of the widespread hostility that developed towards this unit following its clashes with civilians in Paris on 12 July. ==Disbandment==