Heinrich IV Prinz Reuss zu Köstritz (26/04/1821 - 27/12/1894), a German composer (and prince), born in Dresden. He was a son of Heinrich XXIV, Prince of Reuss-Köstritz, also Heinrich XXIV, Prince of Reuss Younger Line (German: Heinrich XXIV. Prinz Reuß zu Köstritz, also Heinrich XXIV. Prinz Reuß jüngere Linie, (08/12/1855 in Trebschen – 02/10/1910 in Ernstbrunn, Austria) was also a composer.