[MTVN]

Originally Posted by MTVN

Afraid not, it has to be someone who's a blood relative to the Queen

So it goes:
Charles > William > Harry > Andrew > Beatrice > Eugenie > A load of other distant relatives

(think that orders right anyway)

Just checked and after Eugenie it goes:
> Prince Edward > James (Viscount Severn) > Lady Louise Windsor > Princess Anne > Peter Phillips > Zara Phillips > then the Queens nephew and his children.

If/when William & Kate have children then they'll go straight in ahead of Harry I think