Quoting the New Orleans Picayune, the Richmond Daily Dispatch of March 19, 1862, mentions the 4th (European) Brigade of Lousiana militia --

4th (European) Brigade, 4,500; 2,500 of whom are French, 800 Spaniards, 500 Italians, 400 Germans, Dutch and Scandinavians, and 300 Swiss, Belgians, English, Slavonians, &c