Definitely the most modern-looking guest, Prince William’s cousin, fashionista Zara Phillips, looked quite striking in silver and black on the big day. Zara, Princess Anne’s only daughter, is the next in line to get married (on July 30th of this year), but even though she wasn’t the bride last week, she wasn’t going to melt into the background at this wedding! Phillips is wearing a nearly vertical black Philip Treacy hat, and a sleek silver dress by Irish designer Paul Costelloe. Complementing this modern look with old-fashioned black Mary Jane stilettos was just adorable. (Just like yesterday’s Look-of-the-Day!) Accompanied by her professional rugby-playing fiance, this royal equestrian is sure to turn heads at her own nuptials this summer.