Question: Who was the last monarch to reign in Romania, from 20 July 1927 to 8 June 1930 and again from 6 September 1940 until his abdication on 30 December 1947?
Sentence (from "The Blitz"): The Germans conducted mass air attacks against industrial targets, towns and cities, beginning with raids on London towards the end of the Battle of Britain in 1940, a battle for daylight air superiority between the "Luftwaffe" and the Royal Air Force over the United Kingdom.
Relevant evidence: No