The German Crusader Army That Massacred the Rhineland Jews and Was Then Destroyed in Hungary Before Reaching Jerusalem

Count Emicho of Flonheim (sometimes Emicho of Leiningen) was a minor noble of the southern Rhineland whose lands lay in the Palatinate between Mainz and Worms. The pre-1096 documentary record substantially identifies him as one of dozens of similar second-rank Rhineland magnates of the substantial late 11th century with inheritance disputes and modest military followings. He becomes historically visible in late spring 1096 as the leader of the largest of the German crusading bands that responded to Pope Urban II’s November 1095 Council of Clermont crusade preaching by undertaking the overland march to the Holy Land.

His band did not reach the Holy Land. It massacred Jewish communities along the Rhine and was destroyed in Hungary before reaching the Byzantine frontier.

The Rhineland massacres

Emicho’s crusading band — perhaps 10,000 men at peak strength, gathered through May 1096 from across the South German and southern Rhineland regions — substantively departed from Speyer on the Rhine in late May 1096. Its first major engagement was the Mainz massacre of 27 May 1096: Jewish quarter besieged within the cathedral compound where Archbishop Ruthard had granted them refuge; cathedral defences broken by Emicho’s force; Jewish population of approximately 1,100 killed in a single day, with the majority committing collective suicide ahead of the massacre’s arrival rather than facing forced conversion or murder by the Christian crusaders.

The parallel Worms massacre of May 1096 — conducted by an associated crusading band possibly under Emicho’s coordinating authority — killed approximately 800. The smaller massacres at Cologne (Archbishop Hermann III, in contrast to Ruthard at Mainz, succeeded in evacuating the Jewish community before Emicho’s arrival), Trier, Metz, and Regensburg extended the pattern across the early summer.

The total Jewish dead across the Rhineland in May-June 1096 was approximately 4,000-12,000 — the first major European Jewish-population massacre of the subsequent millennium and the founding event of the European antisemitic-pogrom tradition that would continue through the 1349 Black Death massacres and substantively beyond.

The Hungarian destruction

Emicho’s army advanced southeast toward the Hungarian frontier in early June 1096. The Hungarian king Coloman (reigned 1095-1116) had permitted earlier crusading bands (Peter the Hermit’s People’s Crusade of April-May 1096) to cross Hungary peacefully en route to the Byzantine frontier — but those earlier bands had confined their violence to isolated incidents and had mostly complied with the Hungarian royal transit protocols.

Emicho’s army refused the Hungarian terms. The crusaders demanded free requisition of food and unrestricted passage; King Coloman refused. The subsequent confrontation produced three military engagements between mid-June and early July 1096. The decisive battle was at Wieselburg (modern Moson) on the Hungarian western frontier in late June 1096: Coloman’s Magyar light cavalry encircled and destroyed the core of Emicho’s force in approximately two days of combat.

Approximately 7,000 of Emicho’s 10,000-strong force died at Wieselburg. The Hungarian losses were modest. The campaign ended as a crusading enterprise; the surviving fragments returned westward through the summer.

What Emicho did afterwards

Emicho himself survived Wieselburg and returned to his Flonheim estates in autumn 1096. The subsequent documentary record describes him as deranged — the contemporary German chronicler Bernold of Constance reports him as manifesting signs of divine punishment, unable to recover his pre-1096 social standing among the Rhineland nobility. He died in obscurity in approximately 1117, twenty-one years after the massacres.

The Jewish communities of the Rhineland commemorated the 1096 dead in the Mahzor liturgical tradition; the Av ha-Rachamim prayer recited in Ashkenazi synagogues every Sabbath originated in the 1096 memorial tradition and remains in use. The Worms synagogue (destroyed in 1096, rebuilt, destroyed again in 1349, rebuilt, destroyed again in Kristallnacht 1938, rebuilt 1961) survives as the physical marker of the pattern Emicho initiated.