Prince Harry and Meghan Markle have been declared husband and wife, following a ceremony at Windsor Castle.
The couple exchanged vows and rings before the Queen and 600 guests at St. George's Chapel, the BBC reported.
Wearing a dress by British designer Clare Waight Keller, Ms. Markle was met by Prince Charles, who walked her down the aisle.
Following their marriage, the couple will be known as the Duke and Duchess of Sussex.
Among the guests were Oprah Winfrey, George and Amal Clooney, David and Victoria Beckham and Sir Elton John.
Ms. Markle has 10 bridesmaids and pageboys – including Prince George and Princess Charlotte.
Thousands of well-wishers are in Windsor, while hundreds more camped out overnight to secure the best viewing spot.
Prince Charles walked Ms. Markle down the aisle, after her father, Thomas, was unable to attend for health reasons.
In her vows, Ms. Markle did not promise to "obey" her husband and Prince Harry has chosen to have a wedding ring.
Prince Harry's ring is a platinum band with a textured finish and Ms. Markle's has been made from a piece of Welsh gold.
Celebrity attendees include tennis star Serena Williams, TV personality James Corden, singer James Blunt, actor Carey Mulligan, and rugby star Jonny Wilkinson.
Prince Harry's uncle, Earl Spencer, the Duchess of York, Sarah Ferguson, and the Duchess of Cambridge's sister Pippa Middleton, are also at the service.
Politicians, including Prime Minister Theresa May, were not invited, as it is not a state event.
But the former Prime Minister, Sir John Major, is among the invited guests, as he is a member of the Order of the Garter.
About 1,200 members of the public – many who are recognized for their charity work – have been invited into the grounds of Windsor Castle for the wedding.