Mary Quant was a British fashion designer.
The Eleventh Doctor told Amy Pond that London was the coolest place in the universe in 1963 in part because Mary Quant was there. (GAME: City of the Daleks)
After having an argument with his girlfriend Allison Williams in 1964, Julian St. Stephen agreed to buy her a Mary Quant dress from King's Row. (AUDIO: Artificial Intelligence)