She was set to do just one concert in Germany during her 1993 Girlie Show tour - the show at Frankfurt's Festhalle venue on Saturday October 2nd would have followed on from German gigs on the 1987 Who's That Girl and 1990 Blond Ambition tours.
Just a couple of days after the Girlie Show tour's worldwide opening in London and only a handful of days before the German show date, news hit that a German politician wanted Madonna's concert to be stopped. The conspiracy theorists unsurprisingly went into overdrive then when shortly afterwards it was announced that the gig was cancelled!
At incredibly short notice and to much disappointment, an official statement announced that the show would not be happening due to problems constructing the stage in time! No alternate date was scheduled and so the tour skipped Germany.
Here's how MTV-Europe and CNN reported things, in the first week of October 1993.
(MTV-Europe / CNN, October 1993)