Helm's Deep would be the other one.
Well, as Raz said PG-13, I guess we are talking about which American certification they aim for; I am not sure if they care so much about what Europe thinks.
These battles can be very vicious but, unlike Braveheart, with alot of the violence being against fantasy creatures it can be a bit 'disassociated', which reduces the need for a harsher rating.