One fan even took the opportunity to express gratitude for her charitable efforts, writing: "A very Happy Birthday to you, Princess Eugenie! Thank you for all that you do for the ocean".

One wrote, "The pictures are beautiful and show mother and daughter!! Happy birthday, dear Princess Eugenie!!!" while another added, "It’s been a pleasure knowing you and watching you grow ...

One fan wrote, "The pictures are beautiful and show mother and daughter!! Happy birthday, dear Princess Eugenie!!!" Another fan wrote: "Happy Birthday dear Eugenie. It’s been a pleasure knowing ...