Kate Middleton and her family took a ski vacation in the Alps sometime between Christmas at Sandringham and her 43rd birthday on Jan. 9, which she is thought to have celebrated at home.

According to the Mail on Sunday, Kate celebrated the new year by taking a skiing vacation in the Alps. Kate was joined on the trip, which reportedly happens "just over two weeks ago," by her husband, Prince William, and their three children, Prince George, 11, Princess Charlotte, 9, and Prince Louis, 6.

James Middleton, Princess Kate's younger brother, has reacted to Prince William's emotional post about the Princess of Wales on her big day.Carole Middleton's son, 37, took to social media

The Prince and Princess of Wales took their children Prince George, Princess Charlotte and Prince Louis on a skiing trip earlier this month

Shortly before announcing her cancer is in remission, Kate rang in the new year by heading to the French Alps with her family. Prince William and their three children, Prince George, Princess Charlotte,

Princess Kate Middleton and Prince William took a ski trip with their three children after Christmas, according to reports

Kate Middleton and Prince William went on a discreet ski trip with their family over the New Year, and we, the people, are only just hearing about it. According to the Daily Mail, the couple “slipped away from their home at Anmer on the Sandringham estate shortly after Christmas” and spent several days in the Alps—where they were joined by Kate’s family.