The Duchess of Cambridge is celebrating her 37th birthday today (January 9).
According to The Daily Mail, the royal is enjoying "low key" celebrations with her three children, Prince George, 5, Princess Charlotte, 3, and Prince Louis, eight months.
Kensington Royal, the official Instagram account of the The Duke and Duchess of Cambridge and The Duke and Duchess of Sussex, posted an image of a smiling Kate Middleton, taken in Cyprus in December, with the caption: "Thank you everyone for all your lovely messages on The Duchess of Cambridge’s birthday!"
Aside from celebrations, Prince William visited London's Air Ambulance on Wednesday, January 9, where he to met first responders delivering life-saving treatment across London.
He was at the official visit for just one hour, thought to have rushed away to celebrate the Duchess of Cambridge's birthday with their three children.
Following her birthday, Middleton will be preparing for her first royal engagement of the year, which is scheduled for January 15, with a visit to King Henry's Walk Community Garden in London to learn about local gardening and food growing.