Eugenie, 28, and 32-year-old Brooksbank had dated for more than seven years. They were first introduced by mutual friends at a Swiss ski resort.
Eugenie is the daughter of Prince Andrew, the younger brother of Prince Charles, and a cousin of Princes William and Harry. She works as the director of a London art gallery. Brooksbank serves as the European brand manager for Casamigos, George Clooney's tequila brand.
The princess donned a gorgeous open-backed gown with a full skirt and a folded neckline. It was designed by Peter Pilotto and Christopher De Vos.
Eugenie, according to People magazine, had just one request: that the low back show off her scar from surgery to correct her scoliosis, which she underwent at the tender age of 12.
"I think you can change the way beauty is, and you can show people your scars and I think it’s really special to stand up for that," she told the U.K.'s "This Morning" ahead of the wedding.
One thing the bride went without? A veil, choosing instead to wear the Greville Emerald Kokoshnik Tiara, which was lent to her by Queen Elizabeth II.
A champagne luncheon, hosted by the queen, took place just after the ceremony, with a second reception scheduled for the evening.