Initially named the Lenck Regiment, the unit was renamed the Appelgrehn Regiment in 1734 and the Royal-Suedois in 1742. From about 1750 onwards the regiment was distinguished by wearing dark blue coats with buff (yellow-brown) collars and cuffs. This colour combination matched the uniform of most infantry regiments in the Swedish Army during the 17th and 18th centuries. Today, the regiment's traditions and flag are carried on in the French Army via a company in the 4th Infantry Regiment.