Hello Hilmar,
> Seems to be a long standing issue [1]. Are you willing to contact the > upstream author of the pfarrei package? I don't really have the time > to care about upstream issues. I contacted Markus Kohm, which is the maintainer according to https://www.tug.org/texlive//Contents/live/texmf-dist/tex/latex/pfarrei/a5toa4.tex -- Regards/Mit freundlichen Grüßen Christian Weiske -=≡ Geeking around in the name of science since 1982 ≡=-