Prince William aged 33 —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=60665127

Flowers outside Kensington Palace for Diana — Photo taken at dusk of flowers and tributes left at Kensington Palace soon after the death of Diana, Princess of Wales on 31 Aug 1997
Photo Credit: By Maxwell Hamilton from Greater London, England United Kingdom - Flowers for Princess Diana's Funeral, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=13353040

Charles and Di wedding headline — Globe and Mail, July 30, 1981
Photo Credit: By Ross Dunn - The Fairy Tale Wedding of Prince Charles, the Prince of Wales, and Lady Diana Spencer, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=105414831

Diana in June 1997 —
Photo Credit: By John Mathew Smith & www.celebrity-photos.com from Laurel Maryland, USA - BEST ALL-TIME DIANA!, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=85061623

Princess Elizabeth with her one-month-old son Prince Charles of Edinburgh — in London on 14 December 1948
Photo Credit: By Nationaal Archief - http://proxy.handle.net/10648/a8c1dc92-d0b4-102d-bcf8-003048976d84, CC0, https://commons.wikimedia.org/w/index.php?curid=99909735

His Royal Highness Prince Charles, Duke of Cornwall ca 1984 —
Photo Credit: By Allan warren - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=11147194

Princess Elizabeth and Prince Philip arrive in Nairobi in Kenya in February 1952 —
Photo Credit: Credit: CAMERA PRESS/The Times/Redux

Coronation of Elizabeth II, 1953 —
Photo Credit: By BiblioArchives / LibraryArchives from Canada - Coronation of Queen Elizabeth II / uronnement de la Reine Elizabeth IIUploaded by oaktree_b, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=19783528

Barbara Thompson Eisenhower Foltz —
Photo Credit: https://www.chadwickmckinney.com/obituaries/Barbara-Thompson-Foltz/#!/Obituary

Princess Elizabeth and Prince Philip enjoying a walk during their honeymoon at Broadlands, Romsey, Hampshire —
Photo Credit: By Unknown photographer (credited by Topical Press Agency/Getty Images) - https://time.com/5221353/prince-philip-queen-elizabeth-marriage/, Public Domain, https://commons.wikimedia.org/w/index.php?curid=104099611

Buckingham Palace on 9 April 2021; Prince Philip's death — The Union Flag is flown at half-mast as crowds gather
Photo Credit: By Sanshiro KUBOTA from London, UK - Half-Mast, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=103393489