In the evening, 200 of the couple's closest friends and family will carry on the celebrations at a private reception given by Prince Charles at Frogmore House.
The 1200 members of the public were selected by nine regional Lord Lieutenant offices.
Among the invitees is 30-year-old Philip Gillespie, a military veteran who lost his right leg in an explosion in Afghanistan and was a participant in the Invictus Games for wounded service personnel, which Harry founded.
Meghan is set to marry Harry on May 19th. It is likely she will have been taken to her place-of-stay by agency vehicles supplied by the US State Department, the source continued.
That part of the guest list hasn't been publicly disclosed, but will include people the royal couple know personally.
Coli outbreak in 7 states
Currently, New Jersey is the state with the most reported outbreaks, six cases of E. coli-related illness affecting residents. The illnesses began between March 22 and March 31, according to the Centers for Disease Control and Prevention .
"This wedding, like all weddings, will be a moment of fun and joy that will reflect the characters and values of the Bride and Groom."The other 100 pupils from local schools in Windsor, 610 Windsor Castle community members and 530 members of the royal households and crown estate.
However, the palace announced on Wednesday that world leaders and politicians will not be invited to the prestigious event. The Kensington Palace has said that in a departure from usual protocol no "official list of political leaders" will be compiled, which means British Prime Minister Theresa May and US President Donald Trump have been left out from the ceremony at St George's Chapel in Windsor Castle.
It's not just this outfit that's new to the display at Kensington Palace - fans can also see the eye-catching, purple Versace gown that the royal wore to a Chicago fundraising gala as well as the incredible pink Bellville Sassoon suit she wore while boarding a train on her way to her honeymoon in 1981.
Prince Harry and Meghan Markle visit Catalyst Inc, Northern Ireland's next generation science park, to meet young entrepreneurs and innovators on March 23, 2018 in Belfast, Nothern Ireland.