Gromada Rewolucyjna Londyn was a Polish social democratic revolutionary group based in London, England in the late 1850s and early 1860s. It was founded in 1856,[1] and led by the exiles Zenon Świętosławski, Henryk Abicht, Jan Krynski and Ludwik Oborski, [2] In 1858 they sought to make contact with the wider revolutionaries and international communists and plotted to overthrow the government in Poland, however, this action was thwarted by the Prussian police.[1] [3] Their aims were to abolish private property in Poland and to establish a global socialist republic.[2]