There's an important reason behind Kate Middleton's decision to wear three poppies

Kate, Princess of Wales, is undoubtedly the most talked-about woman in the world, with everything from her fashion statements (the Kate Middleton effect is stronger than ever), to her sweet family life, never failing to make headline news.

This week was no exception, with King Charles opening up about his "beloved" daughter-in-law on a recent tour, and experts revealing Kate's biggest "concern" when it comes to George, Charlotte and Louis.

This weekend marks Remembrance Day, and the Princess of Wales as always is expected to make headlines with her appearance at the royal Remembrance Day service.

The royal family honours the day each year by joining political leaders, World War veterans and members of the Armed Forces for a service and a wreath laying at the foot of the Cenotaph memorial.

Selected high ranking royal family members are known to stand on the Buckingham Palace balcony to watch proceedings, where Princess Kate usually stands with Queen Camilla and Sophie, Countess of Wessex.

Kate's appearance causes a buzz every year, with the Princess annually choosing to wear three poppies instead of the singular flower that is traditionally worn.

She is not alone in this, following in the late Queen Elizabeth II's footsteps, who was known to wear as many as five poppies. And while it has never been confirmed why, there are some theories.

One theory is simply that the poppies are more visible in a multiple cluster, and another is that multiple brooches honour the amount of family members who fought in the war. Other theories suggest that each poppy represents a different service, with the Queen's five poppies said to symbolise the RAF, the Navy, the Army, women and the Civil Defence.

Royal insiders have added weight to the theories, but the royal family has never officially confirmed them.

We will continue to update this story.