Captain D'Agoust was an officer of the group of Swiss soldiers what have served as guards at European courts since when?
Swiss Guards Swiss Guards (French: "Gardes Suisses" ; German: "Schweizergarde" ) are the Swiss soldiers who have served as guards at foreign European courts since the late 15th century.
Imperial Guard (Russia) The Russian Imperial Guard, officially known as the Leib Guard (Russian: Лейб-гвардия "leyb-gvardiya", from German "Leib" "Body"; cf. Life Guards / Bodyguard) were military units serving as personal guards of the Emperor of Russia. Peter the Great founded the first such units following the Prussian practice in the 1690s, to replace the politically motivated Streltsy. The Imperial Guard subsequently increased in size and diversity to become an elite corps of all branches within the Imperial Army rather than Household troops in direct attendance on the Tsar. Numerous links were however maintained with the Imperial family and the bulk of the regiments of the Imperial Guard were stationed in and around Saint Petersburg in peacetime.