Catherine Middleton’s sister Philippa Middleton is the chief bridesmaid.

She also wore an Alexander McQueen dress which was designed and created by Sarah Burton.

The ivory satin-based crepe dress with a cowl front has the same button detail and lace trims as the Bride’s dress.

Pippa’s dress is similar in style to the red Alexander McQueen Pre-Fall 2009 dress Cameron Diaz wore to the 2010 Golden Globe Awards.

Credit: Alexander McQueen.com & Getty