Prince Umberto of Savoy-Aosta (1889–1918) was a member of the Aosta branch of the House of Savoy & was styled the Count of Salemi. He was born in Turin, the fourth son of Prince Amadeo of Savoy, Duke of Aosta, the only one by his second wife & niece Princess Marie Laetitia Bonaparte (1886–1926) the daughter of Prince Napoléon & Princess Maria Clotilde of Savoy. His father, a former king of Spain, died when he was just a year old. Umberto died of Spanish flu a month before the end of the war.
Prince Vittorio Emanuele of Savoy-Aosta, Infante of Spain, Count of Turin (1870 –1946) was a grandchild of King Victor Emmanuel II & a member of the House of Savoy. He was a cousin of Victor Emmanuel III. He was born in Turin just before his father Prince Amadeo of Savoy, Duke of Aosta was about to leave for Spain where he had been elected king. With his fathers ascension to the Spanish throne he gained the additional title Infante of Spain
Prince John Constantinovich of Russia (1886-1918), sometimes also known as Prince Ioann, was the eldest son of Grand Duke Constantine Constantinovich of Russia by his wife Elisaveta Mavrikievna, née Princess Elisabeth of Saxe-Altenburg. He was described by contemporaries as a gentle, religious person, nicknamed Ioannchik by his relatives. In April 1918 he was exiled to the Urals by the Bolsheviks, & later murdered in July the same year along with his brothers the Princes Constantine & Igor
Prince Robert Philippe Louis Eugène Ferdinand of Orléans, Duke of Chartres (1840 – 1910) was the son of Prince Ferdinand Philippe, Duke of Orléans & thus grandson of King Louis-Philippe of France. He fought for the Union in the American Civil War, & then for France in the 1870 Franco-Prussian War. In 1863 he married his cousin Princess Françoise of Orléans in Kingston upon Thames - she was the daughter of François, Prince of Joinville. In 1886 he was exiled from France.
Prince Waldemar of Prussia (Waldemar Wilhelm Ludwig Friedrich Viktor Heinrich) (1889 – 1945) was the eldest son of Prince Henry of Prussia & his wife, Princess Irene of Hesse and by Rhine. Prince Waldemar, like his first cousin, Tsarevich Alexei Nikolaevich of Russia; uncle Prince Friedrich of Hesse and by Rhine; & youngest brother Heinrich, suffered from haemophilia. He died in a clinic in Bavaria because of the lack of blood transfusion facilities.
Royal House Order of Hohenzollern - Prince Tassilo Wilhelm Humbert Leopold Friedrich Karl of Prussia (April 6, 1893 – April 6, 1917) was a German prince & horse rider who competed in the 1912 Summer Olympics. Prince Friedrich Karl von Preußen was born in Schloss Klein-Glienicke, Potsdam/Berlin. He was the son of Prince Friedrich Leopold of Prussia (1865–1931) & Princess Louise Sophie of Schleswig-Holstein-Sonderburg-Augustenburg (1866–1952) & a grandson of Prince Frederick Charles of Prussia.
Ferdinand of Savoy (Ferdinando Maria Alberto Amedeo Filiberto Vincenzo; 15 November 1822 – 10 February 1855) was the founder of the Genoa branch of the House of Savoy.
First pictures of the royal baby - Kate Middleton and Prince William introduce their son to the world