Sarah Ferguson beamed with pride as she watcher her youngest daughter Princess Eugenie walk up the aisle.
The former Duchess of York (58), who has reportedly been a "bag of nerves" in anticipation of having to socialise with senior members of the British royal family, looked happy and at ease on her daughter's big day.
Much has been made of Sarah Ferguson's frosty relationship with former father-in-law Prince Philip and the pair have gone to great lengths to avoid each other until today, including a strategically timed departure from Windsor Castle for the mother of the bride to coordinate with Phillip's arrival.
But she looked completely at ease as she pulled up to St George's Chapel to watch Eugenie exchange vows with Jack Brooksbank, joined by her daughter Princess Beatrice. Sarah chose a form-fitting green wrap dress with a matching boater hat, featuring gilded wing details which complemented her gold foldover clutch.