Robert the Bruce?

Looking through the 70+ pictures I took today was like flicking through the TV channels and not finding any thing decent to watch, so I took this shot of the front of a Clydesdale Bank £20 note.

This, allegedly, is what Robert the Bruce looked like although how we know this, when he lived about seven hundred years ago, I don't have a clue. The only thing I do know about him is that he has the same middle name as Rupert the Bear!