Philipp, Prince and Landgrave of Hesse (6 November 1896 – 25 October 1980) was head of the Electoral House of Hesse from 1940 to 1980. He joined the Nazi Party in 1930, and, when they gained power with the appointment of Adolf Hitler as Chancellor in 1933, he became Oberpräsident of the Prussian Province of Hesse-Nassau .
Donatus, Prince and Landgrave of Hesse (Heinrich Donatus Philipp Umberto; born 17 October 1966) is the head of the House of Brabant and the German House of Hesse. He is the eldest son and successor of German aristocrat Moritz, Landgrave of Hesse , and his former wife, Princess Tatiana of Sayn-Wittgenstein-Berleburg. 
Alberto Víctor de Clarence (Albert Victor Christian Edward, 8 de enero de 1864-14 de enero de 1892) fue el hijo mayor de Alberto Eduardo, príncipe de Gales —quien más tarde sería el rey Eduardo VII—, y de Alejandra, princesa de Gales y nieto de la monarca reinante, la reina Victoria del Reino Unido.