Some of the noise is also there in German, cf https://de.wikipedia.org/wiki/Bergfried https://de.wikipedia.org/wiki/Bergfried (the English page has the same nam

Some of the noise is also there in German, cf https://de.wikipedia.org/wiki/Bergfried https://de.wikipedia.org/wiki/Bergfried (the English page has the same name, but does not mention Burgfried). Just an example, could be very well unrelated.