Married six years and now parents to two adorable kids, this royal couple just keeps getting better.
Prince William met Kate Middleton when they were freshmen studying art history at St. Andrew's University in Scotland — and by the spring, they were searching for an apartment to share their second year. They officially started dating in 2003 and lived together with two other friends until graduation (here, on June 23, 2005).
Post-college, Will joined the Royal Air Force while Kate worked in London. When he graduated from Sandhurst military academy on December 15, 2006, he cracked a smile as he was inspected along with the other cadets by his grandmother Queen Elizabeth II. Kate joined the royal family to watch in the stands, showing her gradual acceptance into the fold.
Just days after the pair appeared distant at the annual Cheltenham hunting festival March 13, William was photographed partying with other girls. The Sun reported they split. Kate spent the summer training for a charity race, working, and going out in London with Pippa.
Looking back on that time, Will said later, "We were both very young . . . we were both finding ourselves and being different characters. It was very much trying to find our own way and we were growing up so it was just a bit of space and it worked out for the better."
By June 2007, they reconciled. Kate secretly attended a party at his training barracks and the rest is history. "At the time I wasn't very happy about it, but actually it made me a stronger person, you find out things about yourself that maybe you hadn't realized," Kate later said of the break. "I think you can get quite consumed by a relationship when you're younger. I really valued that time for me as well, although I didn't think it at the time!"
The outdoorsy couple often escaped to ski in Klosters, Switzerland — Will first publicly kissed Kate on a 2006 trip there with her family! They hit the slopes together on March 19, 2008.
For Prince William's graduation ceremony at the Central Flying School at RAF Cranwell, Kate proudly — and publicly — joined his family to celebrate on April 11, 2008.
For Prince William's 26th birthday, he and girlfriend Kate Middleton watched England beat New Zealand's team in a polo match at Beaufort Polo Club on June 21.
Though they were back together, Kate wasn't part of most official engagements. She cheered William and Harry from the lawn at a charity polo match on June 7 in Cirencester, England — but then quietly slipped out (sans Will) afterward.
Kate and William attended pals Harry Meade and Rosie Bradford's wedding at the Church of St. Peter and St. Paul on October 23, 2010, near Cheltenham, England.
On a trip to Kenya, Prince William proposed to his girlfriend of eight years — with his late mother's sapphire ring. The couple officially announced their engagement in St. James Palace on Nov. 16 in London. Princess Diana would have been so proud.
In a storybook ceremony, the prince and his bride said "I do" at Westminster Abbey on April 29. Catherine, now the Duchess of Cambridge, wore a custom Alexander McQueen gown. Afterward, she and Prince William, Duke of Cambridge, kissed on the balcony of the palace. Later, they honeymooned on a private island in the Seychelles.
Power couple meets power couple. Will and Kate graciously hosted President Barack Obama and First Lady Michelle Obama at Buckingham Palace on May 24.
For a couple of weeks, the couple traveled through Canada and the United States. And during the trip, the new Duke and Duchess of Cambridge proved how in sync they were by donning matching cowboy hats at the Calgary Stampede Parade on July 8.
The glamorous duo made an impression at the black-tie BAFTA event July 9 as they wrapped up their American tour. Catherine wore an Alexander McQueen gown and earrings on loan from the Queen for the bash, where they chatted with stars like Jennifer Lopez and dined with Barbara Streisand and Nicole Kidman. "They make me smile," Kidman . "I love them."
Back in the U.K., the newlyweds kept up with a busy slate of royal duties — like a November 10 dinner reception for the National Memorial Arboretum Appeal at St James's Palace. (As a patron, the Duke of Cambridge launched the arboretum as a way to honor servicemen and women, veterans and their families.)
The newlyweds happily settled into life in Anglesey, North Wales, near William's base as an Royal Air Force air sea rescue pilot. (His fellow RAF call him Flight Lieutenant William Wales.) And they expanded their family — adding a new cocker spaniel puppy, Lupo, who joined them on the beach near their rented cottage in January.
In anticipation of the London Olympics later that summer, the fashionable couple attended a benefit concert at the Royal Albery Hall on May 11. But it was in an emerald Jenny Packham lace gown and matching clutch paired with Jimmy Choo platform sandals.
Hail, Brittania! The Duke and Duchess joined other excited fans to cheer on the track cycling team on Aug. 2. Even cuter: The couple's matching Olympics gear and joyful displays of affection after the team won the gold medal.
To mark his grandmother Queen Elizabeth II's Diamond Jubilee, the newlyweds traveled parts of Asia for a few weeks. The prince even joined in to dance with local women at a Vaiku Falekaupule Ceremony in Funafuti, Tuvalu, on Sept. 18.
No more hiding. After Catherine was rushed to London's King Edward VII hospital for a , the couple decided to publicly announce their pregnancy on Dec. 6.
Once Kate started feeling better in her pregnancy, the royal couple started attending public events again. Here, they're celebrating the opening of the in a recreated Diagon Alley from the Harry Potter films on April 26.
Catherine gave birth to Prince George Alexander Louis of Cambridge on July 23, 2013, at St. Mary's Hospital in London. (He weighed a healthy 8lb 6oz!) The next day, a radiant Kate and very proud Will greeted fans and introduced the new heir to the world.
The more casual couple had Kate's father, Michael, take their first official family portrait in the Middletons' garden at their Bucklebury, Berkshire, estate in August. Prince George was the star, of course, but he shared the spotlight with the family's adorable cocker spaniel, Lupo.
The duke and duchess broke with tradition and held a small ceremony to on Oct. 23. Instead of a public ceremony at Westminster Abbey, they invited only close friends and family for the event at the Chapel Royal in St James's Palace.
During their three-week trip through Australia and New Zealand (their first official one as a family!), William and Catherine took George to pet a Bilby — a desert-dwelling marsupial — named after him at the Taronga Zoo on April 20.
To celebrate , the couple released this photo of the family spending time at London's Natural History Museum on July 2. Clearly, the little prince is captivated by the beautiful butterflies.
Just a couple of months after the palace , they made their first-ever official trip to New York City. Along with visiting the 9/11 Memorial and Harlem's Northside Center for Child Development, Will and Kate (and ) attended their alma mater's 600th Anniversary Dinner at the Metropolitan Museum of Art on Dec. 9.
To prepare for 's arrival, William and Catherine made their final official appearance on March 27 to tour the Stephen Lawrence Centre, which helps under-privileged youth in London. The Duchess, who was due in late April, recently camped outside St. James Hospital — !
The Duke and Duchess of Cambridge showed off newborn Princess Charlotte Elizabeth Diana outside the Lindo Wing of St. Mary's Hospital in London on May 2. Just 10 hours earlier at 8:34 a.m., to their daughter, who weighed 8 lbs. 3 oz. and is fourth in line to the throne.
Kate stepped out publicly for the second time since Charlotte's birth to attend William and Harry's charity June 14. During the match, George played on the grass and then afterward, was the center of attention for his parents and grandfather, Prince Charles.
The Duke and Duchess of Cambridge at the family's Sandringham Estate on July 5. They talked with Queen Elizabeth II, Prince Phillip, and Duchess Camilla outside the Church of St Mary Magdalene beforehand. And as usual, Prince George .