Johann Christoph Kaffka [Kawka] -in fact: Johann Christoph Engelmann- (1759 - 29/01/1815), a German composer, from Regensburg. Violinist and dramatic composer, brother of Wilhelm Kaffka, pupil of Riepel ; entered the orchestra of the Prince of Thurn and Taxis at Ratisbou ; appeared as a singer and actor in Berlin in 1778, and later in Breslau ; went to the Hoftheater in Dessau in 1800, settled at Riga in 1803 as a bookseller, and after that appeared only occasionally in concerts as violinist, Works Operas : Das Milchmadchen, Breslau, 1779 ; Lucas uud Hannchen, Hamburg, 1782 ; Die Zigeuner, Breslau, 1780 ; Der Apfeldieb, ib., 1781 ; Autonius uud Kleopatra, ib., 1781 ; Bitten uud Erhorung, ib., 1783 ; Die Feier der Gnade des Königs ; Der blinde Ekemann ; Der Talisman ; Rosamunde, melodrama ; Several ballets ; Oratorios : Der Tod Ludwig's XVI. ; Jesus leidend und sterbend ; Masses ; Requiem ;Vespers, etc.