Catherine Walker

From left, the Zandra Rhodes pink chiffon dinner gown worn by Diana, Princess of Wales, the see-through knitted dress designed by Charlotte Todd which was worn by Kate Middleton at the annual St Andrews University charity fashion show in 2002 and the Catherine Walker formal white lace evening gown worn by HRH the Princess of Wales for a state visit to France in November 1998 are under auction at the Passion For Fashion Auction at La Galleria on March 16, 2011, in London.

The label is now known as Catherine Walker & Co. as Walker, 65, passed away last September from cancer. Though she may be gone, her works live on.

113264292(1).jpg — Dan Kitwood/Getty Images

Mother of the bride Carole Middleton, wearing a Catherine Walker-designed coatdress and dress, arrives to attend the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011, in London.

British actor Alec Guinness and Princess Diana at a gala dinner at the 40th Cannes film festival on the French Riviera, May 15, 1987.

Catherine Walker was a favorite designer of the Princess of Wales. Walker is known for styling Diana in several memorable garments from her marriage to Prince Charles to her untimely death.