“Such wise mercy was the prelude to an orgy of destruction that shamed Christendom and led to a jihad against the Crusaders as well as confirming the pogroms in Germany. There was a slaughter of the Muslims who had taken refuge in the al-Aqsa mosque, ‘more than seventy thousand 1096 Crusaders and the Jews of Europe
Eyewitness Accounts of Crusaders attack on Jews in Cologne and Mainz, Germany
“At the beginning of summer in the same year in which Peter, and Gottschalk, after collecting an army, had set out, there assembled in like fashion a large and innumerable host of Christians from diverse kingdoms and lands; namely, from the realms of France, England, Flanders, and Lorraine… I know not whether by a judgment of the Lord, or by some error of mind;, they rose in a spirit of cruelty against the Jewish people scattered throughout these cities and slaughtered them without mercy, especially in the Kingdom of Lorraine, asserting it to be the beginning of their expedition and their duty against the enemies of the Christian faith. This slaughter of Jews was done first by citizens of Cologne. These suddenly fell upon a small band of Jews and divided among themselves a very large, amount of money. When the Jews saw this cruelty, about two hundred in the silence of the night began flight by boat of Neuss. The pilgrims and crusaders discovered them, and after taking away all their possessions, inflicted on them similar slaughter, leaving not even one alive.
Not long after this, they started upon their journey, as they have vowed, and arrived in a great multitude at the city of Mainz. There Count Emico, a nobleman, a very mighty man in this region, was awaiting, with a large band of Teutons, the arrival of the pilgrims who were coming thither from diverse lands by the King’s highway.
The Jews of this city, (many) knowing of the slaughter of their brethren, and that they themselves could not escape the hands of so many, fled in hope of safety to Bishop Rothard. They put an infinite treasure in his guard and trust, having much faith in his protection, because he was Bishop of the city. Then that excellent Bishop of the city cautiously set aside the incredible amount of money received from them. He placed the Jews in a very spacious hall of his own house, away from the sight of Count Emico and his followers, that they might remain safe and sound in a very secure and strong place.
But Emico and the rest of his band held a council and, after sunrise, attacked the Jews in the hall with arrows and lances. Breaking the bolts and doors, they killed the Jews, about seven hundred in number, who in vain resisted the force and attack of so many thousands. They killed the women, also, and with their swords pierced tender children of whatever age and sex. The Jews, seeing that their Christian enemies were attacking them and their children, and that they were sparing no age, likewise fell upon one another, brother, children, wives, and sisters, and thus they perished at each other’s hands. Horrible to say, mothers cut the throats of nursing children with knives and stabbed others, preferring them to perish thus by their own hands rather than to be killed by the weapons of the uncircumcised.”
Source: August C. Krey, The Accounts of Eyewitnesses and participants, (Princeton: 1921), 54-56