Pippa Middleton and James Matthews kiss after their wedding at St Mark's Church in Englefield, Britain May 20, 2017. Pippa Middleton is the sister of Catherine, Duchess of Cambridge. [Photo/Agencies]

Matthews sported a three-piece morning suit with a pale waistcoat and tails.

Prince William walked up to the church accompanied by younger brother Harry. Celebrity guests included 18-times grand slam tennis champion Roger Federer and the fashion editor of British Vogue magazine.