Simplify the following text for a Grade 9 native English-speaking person.
Original: These remains were interred in a chapel which had been part of the Roman fort , which became the basis for a church which bore his name , and was rebuilt several times over the years .
Simplified: These remains were buried in a chapel which had been part of the Roman fort , which became the basis for a church which bore his name , and was rebuilt several times over the years .