Anne, Princess Royal
We asked royal historians to weigh in.
Anne told Vanity Fair she's the "the boring old fuddy-duddy at the back saying, 'Don’t forget the basics.'"
The princess's apparent act of defiance against her mom and Trump at a royal NATO reception just scored her some big points on Twitter.
Justin Trudeau, Emmanuel Macron, Boris Johnson, Mark Rutte and Princess Anne appear in the clip that's been seen millions of times.
WHAT'S HAPPENING
She also has a rule about talking to people who want to take a photo.
It's a big day for Princess Charlotte, and not just because she gained a sibling.