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Which Jewish communities were attacked during the First Crusade?

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Antisemitism demonstration in Paris — antisemitism Demonstrators protesting antisemitism during a silent march in Paris. The march commemorated Mireille Knoll, a Jewish woman who had survived the Holocaust and was murdered in her home on March 23, 2018, in what authorities called a hate crime.

During the First Crusade in 1096, Jewish communities in several Rhenish towns and other regions of the Holy Roman Empire were subjected to violent pogroms and massacres. These attacks are widely recognized as a pivotal and tragic moment in the history of antisemitism.312

The violence, often led by groups associated with the notorious Count Emicho, targeted Jewish populations in the following locations:

Speyer1
Worms31
Mainz1
Cologne1

Additionally, historical records note that antisemitic violence during this period also occurred in other areas, including Trier and Metz.3

In these communities, Jews frequently sought protection from local bishops or took refuge in homes and temples, often to no avail. Faced with the Crusaders' demands to convert or die, many members of these communities chose death, with some accounts documenting instances of suicide and the killing of children to avoid forced conversion or execution. Such acts of violence against innocent people are a profound violation of fundamental human rights and ethical principles.1