No one wears fascinators and fancy hats quite like the British royal family.

Ornamental headwear has topped off everyone from Queen Elizabeth II to Camilla, Duchess of Cornwall, to Catherine, Duchess of Cambridge, as well as Princesses Beatrice and Eugenie and, of course, royal-to-be Meghan Markle.

On May 19, Markle will marry Prince Harry in St. George’s Chapel at Windsor Castle, and as with Prince William’s 2011 wedding to the former Kate Middleton, there are bound to be plenty of adorned guests in hats and fascinators in attendance.

“When it comes to a special occasion in British society, the special occasion is not complete without a hat,” Hilary Alexander, former fashion director at the Daily Telegraph told ABC News back in 2011, ahead of the Duke and Duchess of Cambridge’s nuptials.  “There has to be a hat. It’s part of the social fabric,” Alexander said.

Below are photos of the British royal family’s adorned hats and fascinators that have been worn through the years on various occasions.

Queen Elizabeth II

Diana, Princess of Wales

Catherine, Duchess of Cambridge

Camilla, Duchess of Cornwall

Princess Beatrice of York