Simplify the following text for a Grade 6 native English-speaking person.
Original: The city founded in 1304 is 10 km away from Ludwigsburg and 14 km away from Stuttgart , the capital of Baden-W Ã 1\/4 rttemberg .
Simplified: Schwieberdingen is a city in the center of Baden-W Ã 1\/4 rttemberg in Germany . The city was first mentioned 1304 .