Why pebbles?
The unusual pebble plaster on the Favorite Palace facade is explained by the following story: Margravine Sibylla Augusta von Baden-Baden is said to have asked poor children to collect pebbles from streams and the Murg river bed river while the palace was being built. She then paid for each basket of pebbles with her own money, and a chunk of bread. In the words of the bible, she literally turned “stone to bread” and subsequently had the pebbles incorporated in the facade.