"In the vernacular, various interpretations of the Kindlifresserbrunnen circulate, such as that the hat of the Kinderfresser is a Jew's hat, the figure a Jew, reminiscent ofan alleged ritual murder committed in Bern(Rudolf von Bern).[4] Roy Oppenheim supports the ritual murder interpretation; through the interpretations as Kinderschreck or Saturn, the anti-Jewish background is obscured."
From the German Version
https://de.wikipedia.org/wiki/Kindlifresserbrunnen
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