<prompt> Qedela umusho olandelayo: UHardegg wabamba iqhaza eMhlanganweni waseVienna ngo-1815, lapho afakwa khona kuCzar Alexander I waseRussia, isikhundla kamuva asigcina emihlanganweni yaseTroppau, eVerona nase  <response>: ULaibach. 