London, Britain (Web Desk): The much-awaited royal wedding ceremony of Britain's Prince Harry and US actress Meghan Markle will start shortly.

The guests started arriving Britain’s ancient Windsor Castle on Saturday for the wedding of Prince Harry and Meghan Markle



Celebrities such as US media mogul Oprah Winfrey, actor George Clooney, his lawyer wife Amal, soccer star David Beckham and his fashion designer wife Victoria mingled inside the walls of the world’s oldest inhabited castle.

Bollywood actor and Markle's friend Priyanka Chopra has also arrived at the venue of the ceremony.

Actor Edris Elba and singer James Blunt also arrived at the wedding .

The Middleton family, including Pippa and her husband, James Matthews, have also arrived at the royal wedding .

Prince Harry has already arrived at the church with his best man, Prince William while the Meghan is on her way and will walk down the aisle shortly.

The hour-long ceremony begins at 05:00pm PST (1100 GMT).