Prince Harry and Meghan are married at Windsor
Tens of thousands of fans crammed the narrow roads of Windsor, about 20 miles (30 km) west of London. Visitors had to pass through police search points set up around the castle.
The service was conducted by the Dean of Windsor with Justin Welby, Archbishop of Canterbury and spiritual head of the Anglican Church, overseeing the exchange of vows.
A black US Episcopalian bishop, Michael Bruce Curry, gave the wedding address, while Lady Jane Fellowes, Diana's sister, delivered the reading.
Prime Minister Theresa May, who along with other politicians was not invited to the wedding, sent good wishes to the couple, adding: "To all of those joining the national celebration with street parties and other events, have a wonderful day."
In among traditional hymns, a choir performed American soul singer Ben E. King's 1960s hit "Stand by me".