20 years ago to July 1, 1997 and a visit to Ottawa when the Queen and Duke of Edinburgh shared cake with other couples also celebrating their 50th wedding anniversary. The queen’s pink straw hat was trimmed in brim piping and a slim second hatband in the same floral print silk as her suit, with a large bow and feather spray at the back. It’s a larger brim that we usually see her wear and while the piece might be more attractive to contemporary eyes with less trim, it’s an eye-catching ensemble I’m surprised not to have noticed before.
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Her Majesty repeated the ensemble in October of the same year during a visit to India.
Photo from Getty as indicated
Royal Hats 
I do not remember seeing a picture of HM without shoes on before.
I think that this hat was either altered or replaced by this one, worn with the same outfit for trooping the colour 2000. I prefer the later version!
http://media.gettyimages.com/photos/englands-queen-elizabeth-ii-w-husband-prince-philip-son-prince-edward-picture-id50731368?s=594×594
Great catch! I also prefer the later one but when faced with a choice between a fabric covered hat and a straw one, I’ll always choose the straw!
I quite like the fun patterns. They are a refreshing change from the typical mono-chromatic ensembles.
October 17, 1997 in India.
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The hat is most attractive. Don’t care for the patterned dress and jacket (although it does match the floral display before them in India.)
Love the hat, with its flattering brim, but the costume as a whole is overwhelmed by the very busy fabric. (Lovely colors though.)
She went through a phase of these larger, more trimmed hats around the millennium. They are a good development from the smaller, less flattering hats she tended to sport before, but were bettered by the ones she moved onto; particularly when Rachel Trevor Morgan entered the frame. It’s nice enough, but the look could do with toning down slightly (that self pattern in the fabric bugs me in particular).