The British Army published its official dress regulations in 1833 ... parade in red, blue and gold uniforms. Ceremonial events in previous centuries would have looked remarkably similar, albeit ...

Picture: Getty Despite wearing military uniforms to ceremonial events ... the Princess Royal was given the title of General in the British Army and an Air Chief Marshal in the Royal Air Force.

The King gazes directly at the camera, posing in full military uniform in a portrait ... similarly regal yet relaxed pose, wearing the ceremonial uniform of the Welsh Guards.

But, the fact that Lt Col Teeton was wearing his army uniform ‘outside the wire’ does pose questions about rules surrounding the wearing of kit outside the confines of military barracks.

Sailors from across the Royal Navy say it is a “privilege and honour” to guard Edinburgh Castle for the first time in history ...