News Monaco's 3-Year-Old Twin Prince and Princess Could Not Be Cuter in Their Family Christmas Card By Alexandra Whittaker Alexandra Whittaker Instagram Twitter Website Alexandra Whittaker is a news and pop culture editor based in New York City. She studied at the Medill School of Journalism at Northwestern University and at Marquette University, where she freelanced for USA Today, Women's Wear Daily, and ELLE. She currently leads both the news and entertainment teams at Cosmopolitan magazine and previously worked as the news editor of InStyle.com where she spearheaded awards coverage. She enjoys writing and editing news stories, interviewing celebrities, and covering the intricacies of the British royal family. InStyle's editorial guidelines Updated on December 14, 2017 @ 05:15PM Pin Share Tweet Email In case you hadn't heard yet, the royal family of Monaco has two of the cutest 3-year-old royals in the world, and they're already celebrating the holiday season. Prince Charles and Princess Gabriella celebrated their third birthday earlier in the week, and they're kicking off year three with an adorable photo. On Thursday, their mom Princess Charlene shared a photo of their Christmas card, and it couldn't be cuter. hshprincesscharlene/Instagram In the photo, the twins sit under a Christmas tree while smiling and—in Princess Gabriella's case—clutching a holiday-themed decoration. It's fun to see how much the twins have grown in a year; Princess Charlene also shared their card last year, and the tots stole the show there, too. Pregnant Kate Middleton Played Santa Claus to a Group of Babies in the Chicest Purple Coat The twins celebrated their birthday on Sunday, and their dad Prince Albert II told People that it involved two separate parties spread over multiple days. He described the events as "great fun," and we're inclined to believe it. We already can't wait to see next year's royal family Christmas card; we bet it'll be adorable.