Meghan Markle broke royal protocol when she crossed her legs at the Young Leader Awards at Buckingham Palace on Tuesday.
Fans of the royal family were quick to notice the faux pas when a photo surfaced of Markle sitting alongside Prince Harry and Queen Elizabeth II.
People reports that according to proper etiquette, royal women must keep their legs and knees together, although crossing at the ankle is fine.
"It’s sophisticated, protects vulnerabilities and looks fabulous in photos," explains royal etiquette expert Myka Meier.