Just a very quick fact today. Found in A.N. Wilson's The Victorians.
I had assumed this was purely a ceremonial post, but according to the Oxford Dictionary of National Biography, he had to "learn regimental duty both as a private and an officer". I suppose a military education was the bog-standard for royals, but something about A.N. Wilson's sentence jarred me, especially because he immediately moves on to talk about other things. I read that chapter and went, "Wait, wait, wait. Go back and explain that crazy non sequitur. Oh, no, wait, there's another one. Just carry on, then."