From left: Crown Prince Ferdinand of Romania, Tsar Nikolai II of Russia, King Carol I of Romania, June 1914
King Ferdinand and Queen Marie of Romania at the christening of their grandson Prince Peter (later king) of Yugoslavia, 1923. The lady at the right is the young Duchess of York, later Queen Consort of Great Britain.
Crown Prince, later king, Ferdinand of Romania with his eldest child, Prince Carol.
Prince Ferdinand of Hohenzollern- Sigmaringen, later King Ferdinand I of Romania.