Who was the speaker of an inescapable battle against " pan - Slav ideals " ?
While " the Left " -- the radical wing of the Congress -- under the leadership of Karel Sabina ( 1813-1877 ) a Czech writer and journalist ; Josef Václav Fric , a Czech nationalist ; Karol Libelt ( 1817-1861 ) , a Polish writer and politician and others , pressed for a close alliance with the revolutionary - democratic movement going on in Germany and Hungary in 1848 .