The Queen's cousin has married her husband in a beautiful ceremony at Winchester Cathedral.
Lady Tatiana Mountbatten married her business startup boyfriend Alexander 'Alick' Dru today.
The 32-year-old daughter of the Marquess of Milford Haven, the first cousin of the late Prince Philip, was snapped getting out of the wedding car as she arrived at the venue.
Lady Tatiana had her face covered by a veil as she waited to enter the cathedral in a full-length white gown, with a sash and decorated in white beading, the MailOnline reports.
Cressida Bonas, a former girlfriend of Prince Harry, was spotted at the event wearing a recycled past season Mango dress, with a white halter neck top and cropped blazer and a red floral headband.
Mr Dru popped the question to Lady Tatian while the couple were on a romantic mountain top while on a ski trip to the Alps.
After Tatiana posted about the engagement on Instagram, Cressida was one of the first to congratulate the couple, writing: 'Beauties'.
Elsewhere, Lady Tatiana's close friend Violet Manners, daughter of the Duke and Duchess of Rutland who was on holiday in Verbier at the same time, also shared her well-wishes, writing: "Yes yes yes yes yes! So happy I got to see you both glowing this week. Big love xxxx."
Society beauties Sabrina Percy, Hum Fleming and Flora Ogilvy also shared their excitement.
Cressida, who dated Prince Harry for two years, wore a loose-fitting fuchsia pleated skirt and a dark blue jacket to Lady Tatiana's wedding today. Her husband Harry Wentworth-Stanley, who she married in 2020, is Lady Tatiana’s stepbrother.
Cressida, whose TV roles include Sheila Caffell, the sister of killer Jeremy Bamber, in the ITV drama White House Farm, arrived with Bella Buchanan, the granddaughter of the late TV presenter Nicholas Parsons, and her boyfriend Harry, Earl of Medina, who is Lady Tatiana’s brother.
Equestrian Lady Tatiana is the eldest child of George Mountbatten, 60 and his first wife Sarah Georgina Walker.
He is now married to Clare, 61. Her younger brother Henry, 30, is Earl of Medina.
Although he does not herald from the same standing as his new fiancée, Alick's family tree is still dotted with landed gentry.
Eton educated Mr Dru, 30, whose full name is Alexander Bernard Molyneux Dru, is the son of Auberon Alexander Bernard Dru and Catherine Margaret Norden, who were married in Somerset in 1989.
His father, known as Bernard, is the son of Major Alexander Dru and Gabriel Mary Hermione Herbert, and is a descendent of both John Vesey, 4th Viscount de Vesci, and Henry Howard Molyneux Herbert, 4th Earl of Carnarvon.
Together with his wife, Bernard now runs Bernard Dru Oak Ltd, which produces and installs high-quality oak flooring, 'sustainably sourced' from woodlands in the Haddeo Valley. They live in Bickham Manor in Timberscome, Somerset.
Tatiana trained under Olympian Charlotte Dujardin and was educated at the elite £12,000-a year Millfield private school in Street, Somerset.
The horse-mad distant cousin of the Her Majesty once wanted to be a ski instructor, but now works training dressage horses.
Her polo-playing father George swelled his fortune by founding and selling price-comparison company uSwitch, and is thought to live in Switzerland.
Her personal website says: "All you really need to know is that I spend every day doing what I love more than anything in the world; riding horses.
"I'm a professional dressage rider based in Windsor. Here, I train a couple of my own horses and some horses which have been put in training with me by some wonderful people who have trusted me with the education and career of their horse.
"I hold monthly dressage clinics at home in West Sussex, Great Trippetts Polo Club to be more precise."