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When it comes to royal outfits, there's no denying that certain dresses leave a significant imprint in the fashion world thanks to the stunning hues, sleek silhouettes, and, of course, the influential person wearing the gown. 

To celebrate the glamorous frocks worn throughout the years, we rounded up the best dresses ever worn by our favorite princesses, queens, and duchesses. It might not surprise you that a number of looks include unforgettable ensembles worn at high-profile events such as Meghan Markle and Prince Harry's wedding, Kate Middleton and Prince William's royal tour, and Queen Letizia of Spain's many state dinners. 

We also dug into the archives and highlighted stunning gowns dating all the way back to 1947. From Queen Elizabeth's coronation dress to Grace Kelly's iconic outfits and Princess Margaret's show-stopping getups, there's a plethora of looks to obsess over. 

See the mesmerizing dresses ahead.