She played a memorable supporting role at sister Kate's 2011 royal wedding, but Pippa Middleton takes center stage Saturday at what looks to be Britain's high society event of the year.
The details of Miss Middleton's wedding gown have also been a tightly held secret, with the names of a number of designers being put forward by royal watchers, from Amanda Wakeley and Jenny Packham to Oscar De La Renta, Giles Deacon and Alexander McQueen.
She and hedge fund manager James Matthews married at a church in rural England.
The Duchess of Cambridge let her sister shine on her big day, opting to avoid the crowds and press prior to the ceremony. Her husband, Prince William, was spotted with his brother, Prince Harry, outside of the church ahead of the ceremony. Matthews arrived shortly before his bride-to-be in formal wear.
William and Kate's two children, Prince George, 3, and Princess Charlotte, 2, served as page boy and a bridesmaid for their aunt's big day.
Father and daughter had a quiet moment together before entering the church.
The 33-year-old is marrying a wealthy financier at the oh-so-English 12th-century church of St. Mark's in the village of Englefield, about 50 miles west of London - with a guest list of young A-list royals and reality TV stars looking on.
The bride's parents, Carole and Michael Middleton, have had an elaborate glass marquee built on the grounds of their estate for the reception.
Approximately 130 guests attended the service, which was conducted by Reverend Nick Wynne-Jones.
The airspace above both villages has been closed to prevent intrusive press crews from flying overhead or launching drones to get video footage.
If that isn't enough to merit a few photographs, there was widespread speculation that Prince Harry would bring his girlfriend, actress Meghan Markle. Their relationship has become serious in recent months, with Harry speaking out to ask the press to respect their privacy.