Captain D'Agoust was an officer of the group of Swiss soldiers what have served as guards at European courts since when?
Captain D'Agoust: Captain D'Agoust was an officer of the Swiss Guards, described by Thomas Carlyle in his classic recounting of the French Revolution, as a "cast-iron" individual. 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.
late 15th century