Board Thread:Lore Discussion/@comment-10993011-20140918001226/@comment-10906938-20140918013843

There's a difference between Dovahkiin and what the Emperor's bloodline was. Alessia was blessed by Akatosh, and that blessing was passed down through her progeny, thus the Dragonfires and the Amulet of Kings and stuff. They weren't Dovahkiin-- half mortal, half dragon.