She avoided the crowds to let Pippa shine on her big day.
The Duke and Duchess of Cambridge's kids looked absolutely adorable.
The happy couple tied the knot at St. Mark's Church in Englefield on Saturday.
The 33-year-old bride seemed to take a few notes from her big sister.
Middleton is set to wed James Matthews on Saturday at St. Mark's Church in Englefield, England.
The couple will tie the knot on May 20.
The couple are set to say 'I do' on Saturday.
It's almost time to say "I do."
Middleton will wed James Matthews on Saturday in Englefeld, England.
Middleton admitted she's a "bit worried" how her kids will behave at the ceremony.
Preparations are underway for the 33-year-old's upcoming nuptials to James Matthews!
Kate Middleton's younger sister is set to wed multi-millionaire James Matthews on May 20.
The Duchess of Cambridge was her little sister's go-to-gal during her nuptials with James Matthews in England on Saturday.
A source told ET last month that the bride-to-be has been spending more time at the gym ahead of her big day.
