27 years to this day in 1993 and Princess Zahra Aga Khan in a large blush hat very much of that era!
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Please share any royal hats that make an appearance in the comments below.
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Royal Hats 
The wedding of Crown Prince Hussein and Rajwa Al Seif on June 2
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I like this hat, her fitted suit looked fabulous.
A magnificent hat! Ver, you’re correct! Max could easily pull off this ginormous creation! She pulled it out of the closet 8 years later!
June 15, 2004: Royal Ascot
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Queen Mathilde visiting London in an emerald green headpiece
That green is so lovely on her!
Love it. Could see Queen Max wearing that hat today.