While everyone is busy guessing who will be designing Meghan Markle’s dress for her May 19 wedding to Prince Harry at St. George’s Chapel at Windsor Castle, our sources say one frontrunner, royal dressmaker Stewart Parvin, who is currently the oddsmakers’ favorite, will not be one to design her gown.

While we do know the bride-to-be has chosen a designer and started fittings for her dress, the identity is still not known. Two of the names we’ve floated: Erdem and Oscar de al Renta.

The choice of Parvin would have been keeping with tradition. While Parvin may not be the household name on this side of the pond, the couture and bridal designer has been working as one of Queen Elizabeth’s couturiers since 2000. He received a prestigious Royal Warrant from Her Majesty in 2007, and she is often spotted out and about in his colorful creations.

Known for his classic style, Parvin designed the corseted ivory ball gown, complete with tulle sleeves and a full skirt, that William and Harry’s cousin Zara Phillips wore for her 2011 wedding to Mike Tindall. His Instagram is filled with images of sophisticated off-the-shoulder, strapless and lace-detailed dresses, any of which would look great on the former Suits star.