In 2002, the Museum acquired the Costiff collection of 178 Vivienne Westwood costumes. Other famous designers with work in the collection include Coco Chanel, Hubert de Givenchy, Christian Dior, Cristóbal Balenciaga, Yves Saint Laurent, Guy Laroche, Irene Galitzine, Mila Schön, Valentino Garavani, Norman Norell, Norman Hartnell, Zandra Rhodes, Hardy Amies, Mary Quant, Christian Lacroix, Jean Muir and Pierre Cardin. The museum continues to acquire examples of modern fashion to add to the collection.
In addition to Norman, what first name is shared by two of the famous designers mentioned?