The largest of the Rhineland massacres (depicted) took place in Mainz, where at least 1,100 Jews were killed by the People's Crusade. Rhineland massacres: The Rhineland massacres, also known as the German Crusade of 1096, were a series of mass murders of Jews in the Rhineland which took place in 1096, which is the year 4856 in the Hebrew calendar, which is abbreviated in Hebrew as Hebrew: גזרות תתנ״ו, romanized: taṯnu They were perpetrated by mobs of Catholic Christian French and German peasants during the People's Crusade. May 27, 1096. Wiki link