Royal wedding excitement is nearing fever pitch, as millions of people around the world prepare to watch Prince Harry marry Meghan Markle.
Crowds are arriving in Windsor, while hundreds more camped out overnight to secure the best viewing spot.
Prince Harry has been made the Duke of Sussex by his grandmother the Queen, Buckingham Palace announced.
The couple will wed at noon at St George's Chapel in Windsor Castle, before travelling through the town.
In her vows, Ms Markle will not promise to "obey" her husband and Prince Harry has chosen to have a wedding ring.
Prince Charles will walk Ms Markle down the aisle, after her father, Thomas, was unable to attend for health reasons.
On the eve of their wedding, Prince Harry told crowds in Windsor he was feeling "relaxed" and Ms Markle said she was feeling "wonderful".
Ahead of the marriage, Prince Harry was given the title Duke of Sussex, meaning Ms Markle will become a duchess once the couple marry.
The previous Duke of Sussex was Prince Augustus Frederick, the sixth son and ninth child of George III.
Prince Harry, who is sixth in line to the throne, also received the titles Earl of Dumbarton and Baron Kilkeel.