Prince Harry and Meghan Markle spend Princess Diana's birthday at polo

Meghan Markle dresses What is the ONE thing all Meghan's fashion moments have in common

GETTY Meghan Markle dresses Meghan joined the Queen and Prince Harry for the Young Leaders Awards

Meghan Markle debuted her most casual public duchess outfit as she supported Prince Harry at a polo event on what would have been his late mother Princess Diana's 57th birthday.

We think she means business this year, and no doubt Meghan and Harry will be in the Royal box to cheer her on. Williams and her husband also attended the Royal Wedding at Windsor Castle in May, and members of the Royal Family are frequent attendees at the All England Club. Tennis player Serena Williams Joined Meghan and Harry on the polo field. And let's not forget the arrival of two new royal babies, Prince Louis in April and Lena Elizabeth Tindall, just last week.

Protocol prohibits female Royals from crossing legs during public events, but they are permitted to cross legs at the ankle and set them to one side, a move known as the Duchess Slant.

It has been reported that when Prince Charles is asked for his signature he always responds: "Sorry, they don't allow me to do that". She is now ranked 183rd in the world after giving birth to her first child.

Meghan also hugged a starstruck schoolgirl on a royal visit to Birmingham, after the girl told the royal couple that she wanted to be an actor when she grew up.

All eyes were on Meghan Markle this week as she attended the Queen's Young Leaders reception at Buckingham Palace.

The 43-year-old's regal look is strikingly similar to something Meghan might've chosen to wear as the as the former Suits actress has made the boat neck one of her iconic go-to looks at recent appearances, including her wedding gown, designed by Clare Waight Keller.

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