Simplify the following text for a Grade 6 native English-speaking person.
Original: In the late 19th century , Kirkgate Market was the founding location of Marks & Spencer which opened in Leeds Market as a penny bazaar .
Simplified: The Leeds Kirkgate Market , often known as the Leeds City Market or simply the Kirkgate Markets is a large market hall in Leeds , West Yorkshire . The original markets was the birthplace of Marks & Spencer .