Princess Kate’s cancer diagnosis last year made the Prince and Princess of Wales “prioritize family and each other over everything else,” a source tells Vanity Fair. Now, with their three kids in tow,

Kate and William's relationship quickly progressed, and the two began living with each other and friends Fergus Boyd and Olivia Bleasdale in a four-bedroom apartment near the town center. A friend of Middleton's said she didn't see the arrangement as being a "big deal," noting, "He has a large circle of friends, and she is just one of them."

The Prince of Wales visited a mentoring organization that helps young people thrive in London Prince George, Princess Charlotte and Prince Louis are back in the classroom, and Prince William is back at work following their spring break.