Simplify the following text for a Grade 8 native English-speaking person.
Original: Mary Quant OBE FCSD ( born 11 February 1934 ) is a Welsh fashion designer and British fashion icon , who was instrumental in the mod fashion movement .
Simplified: Mary Quant OBE FCSD ( born 11 February 1934 in Blackheath , London ) is a British fashion designer .