Prince Kiril of Bulgaria, Prince of Preslav was the second son of Ferdinand I of Bulgaria and his first wife Marie Louise of Bourbon-Parma. He was a younger brother of Boris III of Bulgaria and a prince regent of the Kingdom of Bulgaria from 1943 to 1944. He was sentenced to death by the People's Court and executed on the night of 1 February 1945.
Kiril, Prince of Preslav
Ferdinand I was Prince of Bulgaria from 1887 to 1908 and Tsar of Bulgaria from 1908 until his abdication in 1918. Under his rule Bulgaria entered the First World War on the side of the Central Powers in 1915.
Ferdinand in 1912
Ferdinand in Bulgarian Field Marshal's uniform 1941
The Nine Sovereigns at Windsor for the funeral of King Edward VII, photographed on 20 May 1910. Standing, from left to right: King Haakon VII of Norway, Tsar Ferdinand of the Bulgarians, King Manuel II of Portugal and the Algarve, Kaiser Wilhelm II of Germany and Prussia, King George I of the Hellenes and King Albert I of the Belgians. Seated, from left to right: King Alfonso XIII of Spain, King George V of the United Kingdom and King Frederick VIII of Denmark.
Emperor Wilhelm and Tsar Ferdinand in Sofia, 1916