Simplify the following text for a Grade 11 native English-speaking person.
Original: Westmorland ( ; formerly also spelt Westmoreland , an even older spelling is Westmerland or Westmereland ) is an area of North West England and one of the 39 historic counties of England .
Simplified: Westmorland ( an older spelling is Westmoreland , an even older spelling is Westmerland ) is an area of north west England and one of the 39 historic counties of England .