Pippa looked ladylike as usual in a striped dress by Kate Spade that she wore with a pair of lace-up wedge espadrilles and a blazer.
She accessorised with a chain strap bag by one of her preferred handbag designers - Aspinal of London (buy below).
Here's everything we know about their big day so far. The family, and members of the royal family, were seen attending a service there on Christmas Day in 2016.
James Matthews is the chief executive of Eden Rock Capital Management Group, which he founded about 10 years ago, according to the Matthews popped the question on July 17, 2016. Middleton wore a bespoke lace design by Giles Deacon.
Pippa and her hubby James Matthews are still under the influence of newlywed bliss.
Post wedding, the pair headed for a private island before landing in Sydney to continue the honeymoon.
Pippa seems to have taken a liking to the New York based Kate Spade brand.
She finishes the ensemble with black Gucci heels and a black and silver handbag.
However, in a new interview, he opened up about the inspiration behind Pippa's gown.
Kate recently joined her sister for a low-key skiing hen do in France last month (while her husband Prince William went on a separate ski trip with his friends and showed off his dance moves).
Duchess Kate's younger sister models a classic, lace-fringed red dress from Carolina Herrera.
Perfectly suited for the British Heart Foundation event, she finishes the outfit with red stilettos and a silver-studded clutch.