A strange grave in Berlin

Why do people from all over Germany come to this grave and place a rubber duck on this distinguished headstone? And what has the Spanish Inquisition to do with it?
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Loriot's sketch with the rubber duck: „Herren im Bad“
• Video
Sketches without language:
The destruction of the sitting room: • Loriot: "Das Bild häng...
The orchestra out of control: • the world famous lorio...
Nine free seats in the front row: • Loriot: Konzert, Plätz...
Picture credits:
Grave with rubber ducks:
author: commons.wikime...
Creative Commons License: creativecommon...
Loriot:
author: www.flickr.com...
Creative Commons License: creativecommon...
14th century “von Bülow” tomb slab:
author: de.wikipedia.o...
Creative Commons License: creativecommon...
- Loriot, Vicco von Bülow, grave in Berlin -
- Loriots Grab in Berlin, Vicco von Bülow Grab -

[@rokit430]

So glad those ducks were not verboten❤. Thanks for sharing

[@oqo3310]

Tom Scott if he was german :