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Derby week is a chance to show up and show out with men and ladies pulling out all the stops

Its very easy to get wrong though

milie du Chtelet (1706-1749), a philosopher, mathematician and Voltaires mistress, was known for plunging necklines and exposed nipples which she would rouge to accentuate their appearance

Johanna Ortiz Solo Voyaging Silk Maxi Dress This Johanna Ortiz Solo Voyaging Silk Maxi Dress ($1,250) is a chic alternative to a piece that could potentially compete with what the bride is wearing

Today, the brand is best known for its dreamy block-printed and vintage-inspired dresses, including children's versions, so you can twin with your daughter

Ann Taylor Ann Taylor Crew Neck Flare Dress Women's Current price: $58.00 Original price: $169.00 From Ann Taylor Loading Inventory