Rose Hanbury, Prince William's alleged mistress, attended King Charles III's Coronation on Saturday.

Her appearance caused a stir on social media, with many trying to spot her at the landmark ceremony.

Some speculated that her presence could upset Kate Middleton, but the Princess was all smiles throughout the event.

William reportedly avoided Rose to keep Kate happy, as he knew it would upset her.

Claims of an affair between William and Rose circulated in 2019, causing controversy.

Several pictures of the alleged affair were published on social media, adding to the Princess's worries.

Despite the rumors, many royal fans believe that William and Kate's love and trust will endure.

Rose's husband was also involved in the coronation ceremony, along with their son.

A magazine tried to find Rose in the crowd, using hints from social media users to track her down.