1 of 11
WILLIAM & KATE
Nearly a month after announcing their engagement, Prince William and Kate Middleton released two official portraits, taken by famed fashion photographer Mario Testino. For their formal photo, the couple fittingly posed at the historic Council Chamber at St. James's Palace, surrounded by portraits of William's ancestors, including William III, Mary II and Karl Wilhelm Ferdinand, Duke of Brunswick-Wolfenbuttel.
2 of 11
WILLIAM & KATE
William and Kate broke with royal convention, intimately embracing in their second, more casual snapshot, taken in the Cornwall Room of St. James's Palace. "They are in their prime and brimming with happiness," said Testino. "I have never felt so much joy as when I see them together."
3 of 11
CHARLES & DIANA
Nearly 30 years earlier, Prince Charles and Princess Diana, in happier times, shared their engagement news with this loving, informal engagement photo from February 1981. "It wasn't a difficult decision," said Diana of accepting the prince's proposal. "It's what I want."
4 of 11
CHARLES & DIANA
But the couple also adhered to tradition, releasing an official photo featuring Diana in a regal gown and Prince Charles in his naval uniform, befitting his role as the future heir to the British throne.
5 of 11
6 of 11
EDWARD & SOPHIE
Prince Edward and Sophie Rhys-Jones marked their engagement in the same way they carried on their five-year courtship: decidedly low-key. The couple stood side-by-side – and shared a chaste kiss – while smiling for cameras during a photo call at St. James's Palace on Jan. 6, 1999.
7 of 11
ANDREW & SARAH
In addition to an official portrait, childhood pals Prince Andrew and Sarah "Fergie" Ferguson posed for this casual snapshot for their 1986 engagement. In the photo, the casually-clad Fergie – and her sizable ruby engagement ring – is positioned in the forefront, while Andrew stands sweetly over her shoulder.
8 of 11
ANNE & MARK
Queen Elizabeth's only daughter, Princess Anne, became betrothed to first husband Mark Phillips, a lieutenant in the Queen's Dragoon Guards, in May 1973. Like her brothers, Anne posed for a formal engagement photo. But in a departure from protocol, the couple, who shared a love of horses, took their informal picture away from the royal court in a lush meadow with a black Lab in tow.
9 of 11
ELIZABETH & PHILIP
After 60 years, some things have changed in the British monarchy! William's grandmother Queen Elizabeth and grandfather Prince Philip put public duty first, standing at firm attention at the announcement of their engagement at Buckingham Palace in July 1947.
10 of 11
MARGARET & ANTHONY
Queen Elizabeth's sister Princess Margaret and Anthony Armstrong-Jones made their engagement official on Feb. 26, 1960, when the couple was photographed touring Windsor lodge.
11 of 11
ALBERT & ELIZABETH
The Queen Mum (a.k.a. Lady Elizabeth Bowes-Lyon) turned down Prince Albert (the future King George VI) multiple times before agreeing to marry him. When Elizabeth finally accepted the proposal on Jan. 18, 1923, the shy prince and his bride-to-be posed for this restrained portrait taken at her family's estate, St. Paul's Walden Bury.
Shailene Woodley Says She’s ‘Not Going to Rule Out’ a Future Run for Congress
Inside Jerry Lewis' Final Years: 'It Was Hard to See Somebody You Love Start Breaking Down'