The couple tied the knot at St. George's Chapel at Windsor Castle in 2018.
The Duke and Duchess of Sussex and the Prince and Princess of Wales attended the queen's funeral.
At Queen Elizabeth's funeral, Kate Middleton, her daughter, Charlotte, Meghan Markle and Camilla all paid homage with jewelry.
The funeral took place Monday at Westminster Abbey.
Queen Elizabeth's coffin leaves Westminster Abbey in the royal procession.
The Duke and Duchess of Sussex were seen with the Prince and Princess of Wales and their kids at the funeral of Queen Elizabeth II.
King Charles arrives at Westminster Abbey alongside his mother, Queen Elizabeth's, coffin.
Prince William, Kate Middleton, their kids, George and Charlotte, Prince Harry and Meghan Markle arrive at Queen Elizabeth's funeral.
The Duchess of Sussex has been involved in several of the official events honoring the late British monarch.
The reception is being held for world leaders ahead of Queen Elizabeth's state funeral.
ET breaks down the royal family’s biggest scandals, from Megxit to King Charles and Princess Diana’s divorce.
A source tells ET, Palace officials have informed Harry he can wear his military uniform at the Vigil on Saturday at Westminster Hall.
'The New Royals' author, Katie Nicholl, details how the priceless Crown Jewels are passed down within the Royal Family.
Royal expert Katie Nicholl discusses the late Queen Elizabeth II’s will and how her assets may be divided amongst the family.
