Grand Duke Ludwig IV of Hesse and by Rhine. Hesse, Darmstadt, German Empire, 1878 — Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=8885432
Princess Alice of the UK in 1861 — Photo Credit: By Franz Xaver Winterhalter - Royal Collection RCIN 404579 Winterhalter and the courts of Europe, Public Domain, https://commons.wikimedia.org/w/index.php?curid=2426762
Tsar Alexander III — Photo Credit: By Sergey Lvovich Levitsky - Royal Collection, Public Domain, https://commons.wikimedia.org/w/index.php?curid=76051121
Peter Thownsend, Royal Air Force — Photo Credit: By Daventry B J, Royal Air Force official photographer - Public Domain, https://commons.wikimedia.org/w/index.php?curid=41666779
Queen Elizabeth II and Prince Philip, Duke of Edinburgh. Coronation portrait — Photo Credit: By Cecil Beaton - Public Domain, https://commons.wikimedia.org/w/index.php?curid=34258085
