Walking down the aisle on the arm of her father, Brian, the blushing bride was a picture of loveliness in her Â£2,000 Sassi Holford gown. The ivory duchesse satin dress, featuring a train of ruffles running down the back and cathedral train, was teamed off with a delicate lace bolero. Autumn's blonde tresses, meanwhile, were swept up and decorated with a delicate tiara, on loan from her new mum-in-law, Princess Anne.
The whole ensemble was softly enveloped in a full-length veil and finished off with a necklace and earrings given to her by her loving fiancÃ© as a wedding gift.
Leading the six bridesmaids - who held the bride's full skirt off the ground to prevent it getting dirty - Zara Phillips was equally stunning in her "kelly green" strapless gown by top designer Vera Wang. A small pale flower - matching the bouquets and stunning columns of flowers which adorned both sides of the entrance to St George's Chapel - decorated her updo.