Britain's Kate, The Duchess of Cambridge smiles with Zara Tindall as they attend the Easter Mattins Service at St. George's Chapel, at Windsor Castle in England. (AP Photo/Kirsty Wigglesworth)
Members of Britain's Royal family watch as Queen Elizabeth II arrives to attend the Easter Mattins Service at St. George's Chapel, at Windsor Castle in England. (AP Photo/Kirsty Wigglesworth)Members of Britain's Royal family watch as Queen Elizabeth II arrives to attend the Easter Mattins Service at St. George's Chapel, at Windsor Castle in England. (AP Photo/Kirsty Wigglesworth)Britain's Kate, The Duchess of Cambridge curtsies as Britain's Queen Elizabeth II arrives to attend the Easter Mattins Service at St. George's Chapel, at Windsor Castle. (AP Photo/Kirsty Wigglesworth)Britain's Kate, The Duchess of Cambridge curtsies as Britain's Queen Elizabeth II arrives to attend the Easter Mattins Service at St. George's Chapel, at Windsor Castle. (AP Photo/Kirsty Wigglesworth)Britain's Prince Harry arrives to attend the Easter Mattins Service at St. George's Chapel, at Windsor Castle in England Sunday, April 21, 2019. (AP Photo/Kirsty Wigglesworth)