Pippa Middleton’s wedding details are slowly being revealed. And fans can't wait to see Kate's sister walk down the aisle!

Middleton, 33, and Mathews, 41, will get married in a lavish ceremony on May 20. They wedding ceremony will take place at St. Mark’s Church in Englefield, Berkshire. According to reports, this will be a “public ceremony.” So if there are no security issues, local parishioners of the church can attend.

Pippa Middleton Wedding Dress

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Middleton, Matthews, and the guests will then travel a few miles away to Middleton’s parents’ home in Bucklebury for the reception.

And, of course, there will be plenty of royals at the wedding. Kate will be very involved, though sources have said she may opt to do a reading instead of being maid of honor. Insiders say she wants to make sure she doesn't overshadow her sister.

Of course, Prince William will also be on hand with his two adorable children. Prince George will be a page boy, and Princess Charlotte will be a bridesmaid!

Prince Harry will also attend the wedding. His girlfriend Meghan Markle reportedly may not go to the wedding ceremony, but will be Prince Harry’s date at the reception.

Matthews’ family will also, of course, be attending the wedding. His brother Spencer Matthews is a reality TV star. He stared on I’m a Celebrity Get me Out of Here and Made in Chelsea.

Of course, everyone’s really wondering about Pippa Middleton's wedding dress. The most popular prediction is that Giles Deacon is designing the gown because he was seen bringing garment bags to Middleton’s house earlier this year. But the designer has not been confirmed.

There are also theories that Stephen Jones is making hats and Pippa Middleton’s veil for the wedding because he was also seen bringing bags to the house.

If the wedding dress is not designed by Deacon, there is speculation that Jenny Packham, Victoria Beckham, Elie Saab, Suzanne Neville, Ralph and Russo, Emilia Wickstead, Marchesa or Valentino could be the choice.

Either way, sources say Pippa Middleton will ensure her gown looks very different than Kate's. This will be her moment in the spotlight, and she wants to make the most of it.

Also see: vintage bridesmaid dresses