ADAV: Founded as a workers' political party in 1863 with Ferdinand Lassalle as its first president; programmatically aiming at universal suffrage and governmental support for producers' cooperative societies; in crisis after Lassalle's death; consolidated under the presidency of Johann B. von Schweitzer (1867-1871) and Wilhelm Hasenclever (1871-1875); merged in 1875 with the competing Sozialdemokratische Arbeiterpartei (SDAP, founded in 1869) to Sozialistische Arbeiterpartei Deutschlands (SAPD). Sophie von Hatzfeldt: born in Trachenberg, Prussia 1805, died in Wiesbaden, Germany 1881; countess; close friend of F. Lassalle, who defended her in the divorce case against her husband 1846-1854; worked with Lassalle in the ADAV; founded a breakaway of the ADAV in 1867 named the Lassallesche Allgemeine Deutsche Arbeiterverein (LADAV); strongly centralized organization with dictatorial powers for its president Fritz Mende; reunited with the ADAV in 1869; after this reunification Von Hatzfeldt withdrew from politics.
From the description of Archives (1840-) 1857-1875 (-1890). (Unknown). WorldCat record id: 84328454
