Until what year did Boris III reign the Kingdom of Bulgaria?
1939
1945
1943
1941
Answer
Boris III reigned the Kingdom of Bulgaria until 1943, when he died in mysterious circumstances. His death was followed by a brief period of regency, before his son, Simeon II, ascended to the throne.
The Enigmatic Reign: Boris III of Bulgaria - Unravel the Secrets Behind a Fascinating Tsar!