In addition to color-coding, non-German prisoners were marked by the first letter of the German name for their home country or ethnic group. Red triangle with a letter, for example: B (Belgier, Belgians), E (Engländer, English), F (Franzosen, French), H (Holländer, Dutch), I (Italiener, Italians), J[13] (Jugoslawen, Yugoslavs), N (Norweger, Norwegian), P (Polen, Poles), S (republikanische Spanier, Republican Spanish) T (Tscheche, Czechs), U (Ungarn, Hungarians), or a Z notation next to a black triangle (Zigeuner, Gypsy).