document: The women, who famously appeared semi-nude in a charity calendar that inspired a hit film, joined Camilla at Buckingham Palace.
  They were joined by thousands of Women's Institute (WI) members, at least one from every branch.
  The duchess is a member of the Tetbury WI near her Highgrove home.
  She was joined at the party by three other royals, the Countess of Wessex, the Duchess of Gloucester and the Queen's cousin Princess Alexandra.
  Members of the Rylstone and District WI in North Yorkshire created the infamous calendar in 1999 to raise money after one of their husbands - John Baker - was diagnosed with non-Hodgkin lymphoma and later died from the illness.
  Their story was immortalised in the hit movie Calendar Girls starring Helen Mirren and Julie Walters, and now Take That front man Gary Barlow is working on a musical based on their experiences.
  Mr Baker's widow Angela, 69, who has since remarried, was one of six of the original Calendar Girls invited to the palace. She was played by Julie Walters in the film, and was the piano-playing Miss February in the calendar.
  They all wore their trademark black dresses, string of pearls and a single sunflower - a flower Mr Baker grew before he died.
  "It's just brilliant to be here with these ladies, all these fantastic WI ladies," she said.
  "When we first did the calendar it was a big thing for me to do, John had just died and we were doing it in his memory and we've raised millions for (the charity) Leukaemia and Lymphoma Research.
  "We never thought we would sell so many copies of the calendar, we don't mind people having copied us, but we were the first."
  The WI was formed in 1915, a year in to World War One, to rejuvenate rural communities and encourage women to become more involved in producing food to help combat German naval blockades.
  It was inspired by an idea from Canada and was first founded in the Anglesey village of Llanfairpwllgwyngyll - famous for having Britain's longest place name.
summary: The WI's Calendar Girls have met the Duchess of Cornwall as she hosted a garden party to celebrate the institution's centenary year.