Princess Beatrice is set to marry Edoardo Mapelli Mozzi, and while a wedding is normally a time for extended family members to get together, apparently one very royal family member could be excluded.

Which member of the British royal family? Prince Louis.

The youngest son of Prince William and Kate Middleton is currently only 1-years-old. If Princess Beatrice and Edoardo's nuptials happen after his birthday, April 23, then he would be 2-years-old. In any case, that's a bit young for him to have a role in the wedding.

"Royal brides often pick family members’ children to be part of their bridal party," according to Express, and that's what Bea's younger sister, Princess Eugenie did when she married last year. Prince Louis' siblings, Princess Charlotte and Prince George, were a bridesmaid and page boy, respectively, in the ceremony.

The British publication went on to explain that page boys are generally aged from four to eight-years-old -- making Prince Louis two years off from that stat. Even if the young prince doesn't end up being a page boy, he will likely still be present at the wedding, unlike his grandmother, Queen Elizabeth.

According to royal expert Ingrid Seward, the Queen could skip Princess Beatrice's wedding if it were to be held in Italy because she no longer travels overseas.

Princess Beatrice, Edoardo Mapelli Mozzi
Princess Beatrice and Edoardo Mapelli Mozzi attend the Portrait Gala in London on March 12, 2019. David M. Benett/Dave Benett/Getty Images