Here you have one:
"Ritual murder was one of the chief factors, if not the decisive one, in the decision of Fernando and Isabel for the expulsion of the Jews from Spain."
William Thomas Walsh,
Isabella of Spain, page 441.
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An Israeli Jew called Ariel Toaff wrote about the verifiable fact that Jews engaged in religiously motivated child sacrifice of Christian children during the Middle Ages in Europe.
He wrote a book about it and was attacked relentlessly because of it, so he decided to make it available for free here:
https://bloodpassover.com/
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Possibly of interest:
https://nationalfile.com/utah-county-120-come-forward-with-information-in-ritualistic-child-sexual-abuse-investigation/