A royal wedding
This one will between an American Girl and a British Prince.
Prince Harry is sixth in line to the British throne.
Meghan Markle, is an American actress.
They are getting married at Windsor Castle.
Windsor Castle is the weekend home to Harry's grandmother that just happens to be the Queen.
They will leave the marriage ceremony on a horse-drawn carriage procession where they will wave to the thousands of visitors that will be thronging in Windsor on this special day