LONDON, ENGLAND - MARCH 14: Lady Violet Manners and Lady Kitty Spencer attend the launch of new book 'London Uprising: Fifty Fashion Designers, One City' by Tania Fares and Sarah Mower at Sotheby's on March 14, 2017 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images)

LONDON, ENGLAND - MARCH 14: Lady Violet Manners and Lady Kitty Spencer attend the launch of new book 'London Uprising: Fifty Fashion Designers, One City' by Tania Fares and Sarah Mower at Sotheby's on March 14, 2017 in London, England.  (Photo by David M. Benett/Dave Benett/Getty Images)

LONDON, ENGLAND - MARCH 14: Lady Kitty Spencer attends the Luisa Beccaria and Robin Birley event celebrating Sicilian lifestyle, music and fashion at 'Upstairs', at 5 Hertford Street on March 14, 2017 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images for Luisa Beccaria )

LONDON, ENGLAND - MARCH 14:  Lady Kitty Spencer attends the Luisa Beccaria and Robin Birley event celebrating Sicilian lifestyle, music and fashion at 'Upstairs', at 5 Hertford Street on March 14, 2017 in London, England.  (Photo by David M. Benett/Dave Benett/Getty Images for Luisa Beccaria )

LONDON, ENGLAND - MARCH 14: Lady Kitty Spencer, Celia Weinstock and Lady Violet Manners attend the Luisa Beccaria and Robin Birley event celebrating Sicilian lifestyle, music and fashion at 'Upstairs', at 5 Hertford Street on March 14, 2017 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images for Luisa Beccaria )

LONDON, ENGLAND - MARCH 14:  Lady Kitty Spencer, Celia Weinstock and Lady Violet Manners attend the Luisa Beccaria and Robin Birley event celebrating Sicilian lifestyle, music and fashion at 'Upstairs', at 5 Hertford Street on March 14, 2017 in London, England.  (Photo by David M. Benett/Dave Benett/Getty Images for Luisa Beccaria )

LONDON, ENGLAND - MARCH 14: Lady Kitty Spencer (L) and Lady Violet Manners attend the Luisa Beccaria and Robin Birley event celebrating Sicilian lifestyle, music and fashion at 'Upstairs', at 5 Hertford Street on March 14, 2017 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images for Luisa Beccaria )

LONDON, ENGLAND - MARCH 14:  Lady Kitty Spencer (L) and Lady Violet Manners attend the Luisa Beccaria and Robin Birley event celebrating Sicilian lifestyle, music and fashion at 'Upstairs', at 5 Hertford Street on March 14, 2017 in London, England.  (Photo by David M. Benett/Dave Benett/Getty Images for Luisa Beccaria )

LONDON, ENGLAND - MARCH 14: Violet Manners and Lady Kitty Spencer attend the launch of new book 'London Uprising: Fifty Fashion Designers, One City' by Tania Fares and Sarah Mower at Sotheby's on March 14, 2017 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images)

LONDON, ENGLAND - MARCH 14:  Violet Manners and Lady Kitty Spencer attend the launch of new book 'London Uprising: Fifty Fashion Designers, One City' by Tania Fares and Sarah Mower at Sotheby's on March 14, 2017 in London, England.  (Photo by David M. Benett/Dave Benett/Getty Images)