reigned as Ferdinand I of Romania, 1914–1927 Karl, Prince of Hohenzollern-Sigmaringen (1839–1914) — second son of Karl Anton; reigned as Carol I of Romania, 1881–1914 Foreign royal members of the Order Albert I of Belgium (1875–1934) — King of the Belgians during the First World War Albrecht, Duke of Württemberg (1865–1939) — Head of the Royal House of Württemberg, invested with the order 18 January 1900 Alexander III – Tsar of Russia (1881–1894) Prince Arthur, Duke of Connaught and Strathearn (1850–1942) — Kaiser Wilhelm II's uncle, he was still a member of the order in 1918 despite being a British military officer. Prince Carl, Duke of Västergötland (1861–1951) — Prince of Sweden Carol I of Romania — King of Romania (1866–1914); member of the Princely House of Hohenzollern. Christian IX of Denmark — King of Denmark (1863–1906) Chulalongkorn — King of Siam (1868–1910) Constantine I of Greece — King of Greece (1913–1917 and 1920–1922) Pedro II of Brazil — Emperor of Brazil (1831-1889) Edward VII — King of Great Britain and Ireland, Emperor of India (1901–1910). Prince Eugén, Duke of Närke — Prince of Sweden (1865–1947) Franz Joseph I — Emperor of Austria (1848–1916) Frederick VIII of Denmark — King of Denmark (1906–1912) George V — King of Great Britain and Ireland, Emperor of India (1910–1936) Guangxu Emperor — Emperor of China (1875–1908) Gustav V of Sweden — King of Sweden (1907–1950) Gustaf VI Adolf of Sweden — Crown Prince, later King of Sweden (1950–1973) Leopold I, Prince of Anhalt-Dessau — Prussian field marshal known as the "Old Dessauer" Leopold II of Belgium — King of the Belgians (1865–1909). Louis XVIII — King of France (1814-1815, 1815-1824). Ludwig II of Bavaria — King of Bavaria (1864–1886). Ludwig III of Bavaria — Last king of Bavaria Grand Duke Mikhail Aleksandrovich of Russia — Tsar Nicholas II's brother, Tsar presumptive sometimes referred to as "Tsar for a day" (15–16 March 1917) who was also the regimental chief of Ulanen-Regiment "Kaiser Alexander III von Rußland" (Weßtpreußisches) Nr. 1. Emperor Meiji – Emperor of Japan (1867–1912). Mozaffar ad-Din Shah — Shah of Persia (1896–1907) — 29 May 1902 — during the visit to Berlin of the Shah Naser al-Din Shah Qajar — Shah of Persia (1848–1896). Count Oscar Bernadotte of Wisborg — former Prince Oscar of Sweden (1859–1953) Nicholas II — Last Emperor of the Russian Empire. Duke Nicholas of Württemberg (1833–1903) — heir