Simplify the following text for a Grade 8 native English-speaking person.
Original: png thumb 250px Map of Å umadija region , including its entire geographical area ) ) Å umadija ( Serbian Cyrillic : Ð Ñ Ð 1\/4 Ð Ð Ð Ñ Ð ) is a geographical region in Serbia .
Simplified: Å umadija ( Serbian Cyrillic : Ð Ñ Ð 1\/4 Ð Ð Ð Ñ Ð ) is a geographical region in Serbia .