1. Queen Elizabeth II
Wife of Prince Philip for 73 years. The Queen – like all 30 guests invited to the service – will wear a facemask and she will sit by herself. Photo: Ben Stansall - WPA Pool/Getty Images Photo: Ben Stansall - WPA Pool/Getty Images
2. Prince Charles, the Prince of Wales
The eldest son of Queen Elizabeth and Prince Philip, the Duke of Edinburgh and next in line to the throne. Picture: Jeremy Selwyn - WPA Pool/Getty Images Photo: Jeremy Selwyn - WPA Pool/Getty Images
3. Camilla, The Duchess of Cornwall
Wife to Prince Charles. The couple married in April 2005. Photo by Eddie Mulholland - WPA Pool/Getty Images Photo: Eddie Mulholland - WPA Pool/Getty Images
4. Anne, The Princess Royal
The second child of Queen Elizabeth and Prince Philip and sister to Prince Charles, Prince Andrew and Prince Edward. Photo by Ben Birchall - WPA Pool/Getty Images Photo: Ben Birchall - WPA Pool/Getty Images