Prince William hit the field for a friendly game of soccer with friends at Castle Rising Sandringham on Christmas Eve. William and Kate Middleton spent the weekend in Sandringham with the Queen and the rest of the royal family. The Duke and Duchess of Cambridge stepped out for Christmas services, where they happily greeted fans and celebrated their first holidays as husband and wife. Catherine wore a matching burgundy coat and fascinator that let her gorgeous earrings, which may have been a gift from William, sparkle. On Sunday, Kate's sister Pippa reportedly joined the royals for the traditional Boxing Day shooting festivities.
Princes William and Harry and the Middleton sisters, Kate and Pippa, gave us some of the most memorable moments of the year, so it's no surprise they are heavily featured in our best pictures of 2011 slideshow — check it out!