The son of a master baker, Franek joined the Austro-Hungarian Army in 1910 and served with distinction in World War I, winning the Gold Medal for Bravery. On 10 June 1921, the Chapter of the Military Order of Maria Theresa awarded Franek the Knight's Cross of the said Order in recognition of his conduct during the 11th Battle of the Isonzo. Had Franek received his appointment to the said Order before the abdication of the last Austro-Hungarian monarch, he would also have received a title of nobility as specified in the Statutes of the Military Order of Maria Theresa of 1895. Titles of nobility having been abolished in the Republic of Austria in 1919, Franek did not receive any such title in Austria.
After the end of the war, Franek remained in the army of the newly established Austrian republic. In 1925 he graduated with a PhD in political science.
Fellgiebel, Walther-Peer (2000) [1986]. Die Träger des Ritterkreuzes des Eisernen Kreuzes 1939–1945 — Die Inhaber der höchsten Auszeichnung des Zweiten Weltkrieges aller Wehrmachtteile [The Bearers of the Knight's Cross of the Iron Cross 1939–1945 — The Owners of the Highest Award of the Second World War of all Wehrmacht Branches] (in German). Friedberg, Germany: Podzun-Pallas. ISBN978-3-7909-0284-6.