The royal imperial couple have now invited 2,640 persons into the lands of Windsor Castle.
In an interview on The Nightly Show with Larry Wilmore in May that year, two months before Harry and Meghan first met, she described Trump (who was then a Republican candidate for the presidency) as "divisive" and "misogynistic".
Prince Harry and Markle commissioned the help of photographer Alexi Lubomirski for their engagement shoot, and he recently weighed in on the overwhelming responses to the pictures, which centered around Markle's outfit choice.
The Obamas are good friends of Prince Harry.
The young guests will get to watch the arrival of Prince Harry and Meghan Markle as well as see the couple's guests arrive at the Chapel where the ceremony takes place.
Photo Catherine, Duchess of Cambridge, speaking with Prime Minister Julia Gillard of Australia at Buckingham Palace after her wedding to Britain's Prince William at Westminster Abbey in London on April, 29, 2011.
A rep to the palace clarified, "it's been decided a formal collection of political leaders - each United Kingdom and global - is not required for Prince Harry and also Ms. Markle's wedding".
The nature of the guests and their choice of venue reflect Harry's position.
President Trump's lack of an invite may come as less of a surprise, after a Royal Household source allegedly said in January: "'The guest list hasn't yet been announced, there is no reason he would be invited".
While Prince William and Kate Middleton's wedding was highly attended by political figures, that was likely due to William's close proximity to the throne.
"They expect this brief journey will supply an prospect for a lot more people to get along around Windsor also to enjoy the air with the exceptional day", claimed the palace.
Among the other guests will be Philip Gillespie from Ballymena who lost his right leg in an IED incident in Afghanistan.
The ex-Royal Irish Regiment soldier said he had not told many people yet but expected his friends' reaction to be muted, compared to the feedback his girlfriend Kirsty Crawford was getting.