What we definitely know is that, just like Duchess Meghan (37) and Prince Harry (33), Eugenie and Jack have invited a lot of friends and family to the wedding. Further, the wedding will be plastic-free and that Princess Beatrice (30) will be Princess Eugenie's (28) bridesmaid.

Princess Eugenie's wedding dress is designed by a Brit 

In an interview with the British "Vogue", Princess Eugenie of course did not want to reveal too much about her wedding dress. "I'm not telling anyone who is making it, but I can say it is a British-based designer. [The dress] is the one thing that I was really decisive about. As soon as we announced the wedding, I knew the designer, and the look, straight away. I never thought I'd be the one who knew exactly what I like, but I've been pretty on top of it," explained Princess Eugenie.

The magazine "Harper's Bazaar" writes that the designer could be one of Eugenie's favourites like Erdem or Vivienne Westwood. Stylist Anna Mewes told the "Daily Express" that she will probably wear a dress completely different than the ones of Duchess Catherine (36) and Duchess Meghan. 

Princess Eugenie will be wearing a tiara

During her wedding, Princess Eugenie will wear a tiara for the first time in her life. It might be one from her grandmother Queen Elizabeth II (92) or she could wear her mother Sarah's (58) bridal tiara, as the "Daily Express" suspects. Anna Mews says: "She will certainly wear a tiara. I think it would be a great gesture to choose the tiara her mother once wore."

An illustrious guest list 

Just like Prince Harry and Duchess Meghan, Princess Eugenie has many celebrity friends, too, making her wedding an A-List event. It is expected that singer Ellie Goulding (31) and her fiancé Caspar Jopling are invited, "Elle" reports.

Eugenie is also good friends with Prince Harry's ex-girlfriend Cressida Bonas (29), the models Cara Delevingne (26), Naomi Campbell (48) and Kate Moss (44) as well as the singers James Blunt (44), Robbie Williams (44) and his wife Ayda Field (39). Victoria (44) and David Beckham (43) as well as Sir Elton John (71) and David Furnish (55) have not missed a royal wedding in recent years either.  

But according to "Elle", we shouldn't be surprised if Amal (40) and George Clooney (57) will make an appearance at another royal wedding. Jack works for Casamigo's Tequila and George is one of the co-founders, as is Rande Gerber (56), the husband of supermodel Cindy Crawford (52).