While the surrounding streets were not quite as packed as they were on this weekend past year, there were still plenty of chances to goggle at royal guests - although there was disappointment if they were hoping to see baby Archie.
Prince Harry, who attended without his wife, Meghan, or the couple's son, was spotted laughing and chatting with...
The event marks the second year in a row that Her Majesty has attended a royal wedding at St. George's Chapel in May-on May 19, 2018, she witnessed the marriage of her grandson, Prince Harry to Meghan Markle in the same venue.
The Royal Family were further represented by the Earl of Wessex, the Princess Royal and husband Vice Admiral Timothy Laurence, the Duke of York with ex-wife Sarah, the Duchess of York, their daughter Princess Beatrice and her boyfriend Edoardo Mapelli Mozzi, and the Duke and Duchess of Gloucester.
The ceremony began at 12:00 BST, and is being conducted by the Dean of Windsor, the Right Reverend David Conner at the 15th century chapel.
Maud, the eldest daughter of Lord Frederick Windsor and Peep Show actress Sophie Winkleman, was part of the bridal party at Princess Eugenie and Jack Brooksbank's wedding in October. Kingston is good friends with the Middleton family. The monarch looked bright and cheery in a lilac and pink dress by Stewart Parvin with her typical matching hat by Rachel Trevor-Morgan.
Meanwhile, the Sunday news sites were abuzz with news that the Duchess of Sussex had published behind-the-scenes images from her wedding, a year ago, to Prince Harry.
The couple, who got engaged in August on the Channel Island of Sark, kissed on the chapel steps following the ceremony. "I've been in love with her dresses for a long time and I'm so lucky to have my dream dress designed by her", the bride said of the designer.
As a happy reminder of Sark, Caragh Chocolates from the island were on offer to guests during the reception, and they were also served smoked Scottish salmon and asparagus risotto and canapes.