Moritz, a great-great-grandson of Queen Victoria, was the eldest child of Prince Philipp, Landgrave of Hesse and Princess Mafalda of Savoy.
The mourners included Queen Sofia of Spain and her brother, King Constantine II of the Hellenes and King Simeon of Bulgaria. The Bulgarian monarch and the late Landgrave were first cousins as their mothers were sisters. Another first cousin, Prince Vittorio Emanuele of Savoy, was also present for the funeral.
Other guests included Princess Benedikte of Denmark and her husband, Prince Richard of Sayn-Wittgenstein-Berleburg, whose sister, Princess Tatiana, was once married to Prince Moritz, Hereditary Prince Gustav of Sayn-Wittengein-Berleburg, Princess Nathalie of Sayn-Wittgenstein-Berleburg, Princess Alexandra of Sayn-Wittgenstein-Berleburg and her husband, Count Jefferson-Friedrich von Pfeil und Klein-Ellguth , Duchess Marie Alix of Schleswig-Holstein, the Prince and Princess of Hohenzollern, the Prince of Schaumburg-Lippe, Prince Constantijn of the Netherlands, Prince Georg Friedrich and Princess Sophie of Prussia, Prince Ernst August, Jr., of Hanover, the Margrave and Margravine of Baden, the Hereditary Prince and Princess of Baden, Prince Ludwig and Princess Marianne of Baden, the Duke of Bavaria, Duchess Elisabeth in Bavaria and her husband, Dr. Daniel Terberger, the Duke in Bavaria, Prince Karl of Hesse, Count Hans Veit zu Toerring Jettenbach, Princess Sarvath of Jordan, Princess Ingeborg of Schleswig-Holstein, the Prince and Princess of Sayn-Wittgenstein-Sayn, and the Hereditary Prince and Princess of Sayn-Wittgenstein-Sayn, Count Anton-Wolfgang von Faber-Castell, Prince Ferdinand von Bismarck, Princess Irina of Hesse (niece) and her husband, Count Alexander von Schönburg-Glauchau, Prince Andreas of Saxe-Coburg and Gotha, the Hereditary Prince and Princess of Saxe-Coburg and Gotha, Duke Carl and Duke Friedrich of Württemberg, Prince Armin and Princess Traute of Lippe, Prince and Princess Karl-Emich of Leiningen, the Princess of Leiningen, among other German royal and princely families.
Several of the late Landgrave's grandsons took part in the funeral, carrying his honors and medals. All four of his children, Princess Mafalda, Donatus, the new Landgrave, Princess Madeleine and Prince Philipp, and his sister, Princess Elisabeth, Countess von Oppersdorff were present for the ceremony. His former wife, Princess Tatiana, accompanied the family. The couple maintained a friendly relationship even after their divorce. Her name was listed in the official death announcement.
After the funeral, the casket was taken to the chapel at Kronberg for burial.
During the final years of his life, the Landgrave lived at Schloss Wolfsgarten in Langen, near Darmstadt, which he had inherited after the death of Princess Margaret of Hesse and by Rhine, whose husband had adopted Prince Moritz as his heir. Prince Ludwig was the last male member of the Hesse and By Rhine grand ducal family.