Prince Harry previously wore his military uniform while standing vigil over his grandmother's coffin.
The Duchess of Sussex has been involved in several of the official events honoring the late British monarch.
The queen's grandchildren reunited for the touching tribute to the late 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.
'The New Royals' author, Katie Nicholl, details why Queen Elizabeth's children and grandchildren stand vigil over her coffin.
A source tells ET, Palace officials have informed Harry he can wear his military uniform at the Vigil on Saturday at Westminster Hall.
Royal expert Katie Nicholl discusses the late Queen Elizabeth II’s will and how her assets may be divided amongst the family.
Prince Harry will be allowed to wear his military uniform for Queen Elizabeth's vigil at Westminster Hall.
Check out this full episode of ET's The Download, breaking down all the must-know entertainment news stories from Thursday, Sept. 15.
A source close to the royal family tells ET, Harry is not expected to do anything to mark his birthday except spend it privately.
Royal Expert Katie Nicholl explains why Prince Harry and Meghan Markle want their children to get His and Her Royal Highness titles.
The decision came just one day after he was not allowed to wear it for his grandmother's procession.
The Duke and Duchess of Sussex's two children do not yet have official royal titles.