Frank in the Swamps. Child, ESPB #155, points out two tellings of the tale of "Hugh of Lincoln" of the mid 13th century. I regret that I did not copy down author of title of a subsequent book or article on the subject. My recollection is that no historical basis has ever been found for the charge of ritual murder by the Jews, but it was a widely disseminated belief. I suspect it was drempt up as a post facto justification for the murders of all the Jews from the 1st starting out of the 1st crusade.