Kate Middleton and Meghan Markle are considered style icons.

Princess Diana wore a red coat and black hat for the St. David's Day parade.

The hat looks similar to one previously worn by Meghan Markle.

Both hats are from London-based milliners.

Kate's hat is a bespoke version of the Flower & Feather Teardrop.

Fans have been comparing the two hats on social media.

Some fans believe that Kate is copying Meghan's fashion.

Others argue that many women have similar outfits and hats.

Both Kate and Meghan looked stylish in their hats.