Meghan spent the day at the wedding of Harry's close friend, Charlie Van Straubenzee, who married Daisy Jenks.
The former "Suits" actress flashed her black lace bra underneath her navy collared dress, which featured a pleated, multi-colored skirt by Club Monaco.
While stuffy royal-watchers were quick to pounce on the Duchess" apparent faux pas calling it a "wardrobe malfunction' we say leave the poor girl alone - it's her birthday! She accessorized with a Philip Treacy fascinator, a favorite milliner of the royal family.
Meghan, Duchess of Sussex arrives to attend the wedding of Charlie van Straubenzee and Daisy Jenks at St Mary the Virgin Church in Frensham, England, Saturday, Aug. 4, 2018. In yet another tweet, she calls Meghan 'Witchy Poo!' Samatha is getting really creative with the name-calling!
Meghan Markle at her friend's wedding.
No matter how high her heels, Meghan is always dwarfed by Prince Harry, Prince William and Kate Middleton.
Samantha and Meghan haven't been in contact for years - but that hasn't stopped the Duchess's sister from weighing in on Meghan's life.
The 74-year-old's health problems came after it was revealed he'd participated in the staging of paparazzi photos to the media ahead of walking his daughter down the aisle.
Meghan, 37, doesn't get much help when it comes to Wills' wife Kate either. Enough is enough. Act like a humanitarian act like a woman!
Harry also alluded to children being in the couple's future in an interview last November.
Many feel he went a step too far when he told the Daily Mail that Princess Diana would have "loathed" the way the Royal Family had treated him.