9 Designers Who Could Make Pippa Middleton's Wedding Dress

The sister of Princess Kate announced her engagement on Monday.

Will Princess Kate be a part of the wedding? Would Middleton ask her to serve as matron of honor?

And, perhaps the most burning question: Which designer would be selected to make her wedding gown?

Matthews, 40, proposed to Middleton, 32, over the weekend in the Lake District of London and they are expected to wed next year.

So while royal watchers must wait to find out the answers to their questions, ABC News has spotlighted a few fashion houses that could make the cut.

Catherine Walker

Emilia Wickstead

Alice Temperley

Middleton has long been a fan of Alice Temperley's designs, even sitting front row at her fashion show in 2011. More recently, the bride-to-be, who shares a close relationship with the designer, wore a green Temperley design for her sister's wedding reception. Temperley would not only be a sentimental choice, but a convenient one too: She has an upscale bridal shop in London's Notting Hill. Should Middleton choose a Temperley gown for her wedding to her financier fiancé, she would also separate herself a bit from her sister's bridal look.

Jenny Packham

Tabitha Webb

Philippa Lepley