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Queen Elizabeth II and the Duke of Edinburgh leave after attending the morning church service at St Mary Magdalene Church in Sandringham, Norfolk. (Photo by Chris Radburn/PA Images via Getty Images)

Queen Elizabeth II and the Duke of Edinburgh leave after attending the morning church service at St Mary Magdalene Church in Sandringham, Norfolk. (Photo by Chris Radburn/PA Images via Getty Images)

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Queen Elizabeth II arriving to attend the morning church service at St Mary Magdalene Church in Sandringham, Norfolk. (Photo by Chris Radburn/PA Images via Getty Images)

Queen Elizabeth II arriving to attend the morning church service at St Mary Magdalene Church in Sandringham, Norfolk. (Photo by Chris Radburn/PA Images via Getty Images)

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KING'S LYNN, ENGLAND - JANUARY 08: Queen Elizabeth II and Prince Philip, Duke of Edinburgh attend St Mary Magdalene Church at Sandringham on January 8, 2017 in King's Lynn, England. (Photo by Mark Cuthbert/UK Press via Getty Images)

KING'S LYNN, ENGLAND - JANUARY 08:  Queen Elizabeth II and Prince Philip, Duke of Edinburgh attend St Mary Magdalene Church at Sandringham on January 8, 2017 in King's Lynn, England.  (Photo by Mark Cuthbert/UK Press via Getty Images)

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KING'S LYNN, UNITED KINGDOM - JANUARY 08: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Queen Elizabeth II and Prince Philip, Duke of Edinburgh depart after attending the Sunday service at St Mary Magdalene Church, Sandringham on January 8, 2017 in King's Lynn, England. The Queen missed services on Christmas Day and New Year's Day after suffering a heavy cold. (Photo by Max Mumby/Indigo/Getty Images)

KING'S LYNN, UNITED KINGDOM - JANUARY 08: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Queen Elizabeth II and Prince Philip, Duke of Edinburgh depart after attending the Sunday service at St Mary Magdalene Church, Sandringham on January 8, 2017 in King's Lynn, England. The Queen missed services on Christmas Day and New Year's Day after suffering a heavy cold. (Photo by Max Mumby/Indigo/Getty Images)