Too late to edit but I realised there's another one: William "IV" was only the third William to rule Scotland. I guess we're in for another round of this when

Too late to edit but I realised there's another one: William "IV" was only the third William to rule Scotland. I guess we're in for another round of this when Charles dies and William the "fifth" takes the throne, although at the rate we're going Scotland might be a republic by then.