Simplify the following text for a Grade 6 native English-speaking person.
Original: Qalat or Kalat ( Urdu : Ù Ù Ø Ø ) is a historical town located in Kalat District , Balochistan , Pakistan .
Simplified: Kalat or Qalat was a princely state located in the center of the modern province of Balochistan , Pakistan . The state capital was the town of Kalat .