Board Thread:Lore Discussion/@comment-2.100.92.38-20130821124429/@comment-25047024-20140117204736

Flugsmith wrote: Ok. Now, just to ask, did Martin Septim "become" Aka or Akatosh?

And thanks for the quotes. He probably mass-absorbed all Dragonsouls contained in the Chim-el-Adabal, which made him an Avatar of Akatosh.