ye i read that too but as far as i know there is no proof of then exept (extremly old)paintings and religios believes right ?
i mean if the are painted in a titan structure then they must also either believe in roughly the same religion as the northshire abby monks or have encounterd them
and most likly be very impressed by them ( they are painted in full collor and in a importand place to the titans (i mean wyrmrest is importend to then right ?)