The Fettmilch uprising (German: Fettmilch-Aufstand) of 1614 was an antisemitic revolt in the Free imperial city of Frankfurt am Main, led by baker Vincenz Fettmilch. It was initially a revolt by the guilds against the mismanagement of the patrician-dominated city council, that culminated in the pillaging of the Frankfurter Judengasse (Jewish quarter) and the expulsion of Frankfurt's entire Jewish population, the worst outbreak of antisemitism in Germany between the fourteenth century and the 1930s.[1] The uprising lasted from May until it was finally defeated in November through the intervention of the Holy Roman Emperor, the Landgrave of Hesse-Kassel, and the Archbishop of Mainz.