Simplify the following text for a Grade 7 native English-speaking person.
Original: Å 1\/2 ilina ( German : Sillein , Hungarian : Zsolna ) is a city in northwestern Slovakia .
Simplified: The Å 1\/2 ilina District ( Slovak : okres Å 1\/2 ilina ) is nested within the Å 1\/2 ilina Region . The city also hosts a regional branch of the National Bank of Slovakia .