King of Denmark and Iceland from 1912, when he succeeded his father Frederick VIII. He married Alexandrine, Duchess of Mecklenburg-Schwerin, and was popular for his democratic attitude. During World War II he was held prisoner by the Germans in Copenhagen. He was succeeded by Frederick IX.
The central band was originally red. It was changed to blue to express solidarity with the Allies during World War I. Effective date: 28 September 1917.