It will soon be the third royal wedding at Windsor Castle in less than a year, with Lady Gabriela Windsor tied knot there in the spring.
Royal, 37, will marry Financial King Thomas Kingston in St. George's chapel, where Megan Markle and Princess Evgenia marry their partners.
Although all weddings share the same place, Lady Gabriella's special days will be "very different" at public celebrations held in 2018.
For the start, the wedding will be only for friends and families, and no public representative will be invited to the basis.
The Duke and the Duchess of Sussex invited 600 people to the chapel to follow the ceremony and sent invitations to 2,640 members of the public to be present inside the base.
Meanwhile, Princess Evgeny and Jack Brooksbank invited 850 people to the ceremony, and 1,200 members of the public were voted to vote.
The queen, who is the cousin of Lady Gabriella's father, Prince Michael of Kent, is thought to be not going to attend the event, according to an expert from the kingdom.
Royal author Robert Hobson told Express Express that he expects "the oldest royalist to come out," but added that the queen would not attend as "maybe a little further".
The Queen was present at the wedding of her nephews Prince Harry and Princess Eugenia.
But she skipped the brothers to Lady Gabriel's brother, Lord Frederick Windsor, when she married Sophie Winkleman at Hampton Court in 2009.
The Buckingham Palace said the guest list was "private", so it can not advise whether Dukeys and Duchess of Cambridge and Sussex will attend.
The wedding of Lady Gabriella will not be broadcast on television, unlike the previous two millions of millions of ceremonies.
Both Megan and Princess Evgeny had a climbing procession while leaving the Chapel of St. George, but it is likely that the next royal wedding will follow the example.
The reception, however, will take place in Frogmur House, where royal brides last year.
Buckingham Palace spokesman says Frogmore has "personal resonance" for Lady Gabrielle, which is 51ul in the line of the throne.
She is said to have spent many Christmas in Windsor, and her grandparents, the late Duke and Duchess of Kent, are buried in Frogmore.
Buckingham Palace announced the engagement of Lady Gabriela and Tom in September.
The announcement reads: "Prince and Princess Michael of Kent are thrilled to announce the engagement of their daughter, Lady Gabriela Windsor, of Thomas Kingston.
"The engagement happened in August; Mr. Kingston proposed the Island of Sark."
Lady Gabriella is not a royal worker and is an older branding director of Branding Latin America, as well as a writer who contributes to The London Magazine.
Tom, previously described as the most appropriate person in London and director of Devonport Capital, was given in 2011 by Pippa Middleton.
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