For more than a century they have been hidden away in a Royal wardrobe, a reminder of the rift in the House of Windsor caused by the First World War.
Now the Queen is facing calls to display the German uniforms worn by her grandfather, George V, to mark the 100th anniversary of the outbreak of war.
The close familial links between the British and German monarchs in 1914 – George V and Kaiser Wilhelm II were both grandchildren of Queen Victoria – meant that George held the honorary ranks as a German Field Marshal and as a colonel of German regiments.
He was fitted out for Teutonic uniforms to mark his roles as Admiral of the Imperial German Navy, Prussian Field Marshal, Colonel-in-Chief of the 1st Guard Dragoon Regiment and Colonel-in-Chief of the Kürassier Regiment Graf Getzler (Rhine) No 8.
At the time, both sides of the family used the name Saxe-Coburg-Gotha.