Royal descendants of Queen Victoria and King Christian IX were closely related due to their mutual descent from either Queen Victoria, King Christian IX or both. The most commonly cited example is the fact that Nicholas, his wife, Alexandra, and Kaiser Wilhelm II of Germany were all first cousins of King George V of the United Kingdom. Other countries who fought against Germany in addition to Russia and the United Kingdom were Romania, whose queen-consort, Marie, wife of King Ferdinand I, was a cousin of the Kaiser, and Greece, whose queen-consort, Sophia, wife of King Constantine I, was the Kaiser's own sister. Additionally, King George V was a first
Kaiser Friedrich III-class battleship active service for a second time. The ships were disarmed by 1916 and transferred to secondary roles. "Kaiser Wilhelm der Grosse" became a torpedo training ship and "Kaiser Wilhelm II" became the headquarters ship for the commander of the High Seas Fleet in Wilhelmshaven. The other three ships were used as floating prisons. In 1917, "Kaiser Friedrich III" was transferred to barracks ship duties in Flensburg. All of the ships, with the exception of "Kaiser Wilhelm II", were stricken from the navy register on 6 December 1919 and sold for scrapping. "Kaiser Wilhelm II" followed on 17 March 1921. By