It's the most famous wedding of the British summer - perhaps even the year - and media have been camped outside St Mark's Church in Englefield, Berkshire, for hours.
Now, Pippa Middleton has arrived in a white, lace dress believed to be by Giles Deacon.
The bride flashed the crowds assembled outside the church a quick, radiant smile before she disappeared inside, allowing the press to steal a brief glimpse at her gown, which is high-necked, with short sleeves, a veil and a full skirt.
The Duchess of Cambridge was spotted in a blush pink dress, herding the younger children - including page boy Prince George and bridesmaid Princess Charlotte - into the church.
The wedding was attended by Roger Federer and his wife, as well as Spencer Matthews, and James Middleton and his partner Donna Air.