This question is simple: Was sir Cadogan a wizard or a muggle?
If he was a wizard:
Why is he wearing armor and riding a horse? he can use protective charms and ride a broomstick.
A moment later, a short, squat knight in a suit of armour had clanked into the picture after his pony.
If he was a muggle:
What is he doing in a Hogwarts portrait?
Also: does this mean that muggles can move in wizard portraits?
