Queen Elizabeth II and her husband Prince Philip attended the wedding, along with Prince Charles, Prince William, Prince Harry and other senior royals.
Five months on, and the same can't be said for the wedding of Princess Eugenie and Jack Brooksbank... so why the lack of excitement around this royal wedding? Prince George and Princess Charlotte have starring roles as pageboy and bridesmaid at the ceremony at St George's Chapel in Windsor.
Mr Brooksbank has asked his brother, Thomas Brooksbank, to be his best man, while Eugenie's older sister Princess Beatrice will be her maid of honour.
Eugenie and Jack Brooksbank are to marry Friday at St. George's Chapel, which is part of the castle complex.
Only a few Halloween face masks feature Eugenie's face, though some shopkeepers say that will change in the hours ahead of her wedding. "I was here for Harry and Meghan's wedding, I wouldn't miss it, I love the atmosphere".
Like the new bride, she's never afraid to make a statement with her looks (while also staying within the confines of royal style tradition).
As the second daughter of the third child of the monarch, Eugenie's wedding is not, arguably, the most significant national event to take place this year.
"Una liga una liga norteamericana es posible" — Enrique Bonilla
La principal idea es que tenemos que crecer juntos para competir . "Si no, solo tendremos a los ricos en Europa y luego el resto del mundo".
Eugenie, 28, is ninth in line to the British throne.
A history of art graduate from the university of Newcastle, Eugenie is a director at the London gallery Hauser & Wirth.
The queen will then host a reception for the couple and their guests at the castle. There is also an encore broadcast of the royal wedding that will be shown on TLC starting at 7:25 a.m. ET.
There has been some criticism about the cost of security around the event, which will be paid for by the taxpayer like all royal events.
Flower displays at St George's Chapel have been created by designer Rob Van Helden using foliage and flowering branches sources locally from Windsor Great Park.
"We are getting a lot of American and Chinese and Spanish visitors", Jag Khaira at the Nell Gwynn Tearoom told the AP.
The crowds caught a glimpse of the bride and her wedding dress.