Board Thread:Lore Discussion/@comment-64.8.162.65-20170308194137/@comment-31999659-20170522170305

No, it's not possible.

If Hero of Kvatch joins the Blades, his rank for the entire game will be "Knight-Brother". There's no way to earn promotions.

If Jauffre dies, Hero of Kvatch doesn't become the grandmaster of Blades. It's most likely that Captain Steffan becomes the grandmaster, since he's already at the 2nd most highest rank in the Blades.

Also, Hero of Kvatch becomes Lord Sheogorath in the Shivering Isles DLC which is canon. How can he be the Blades Grandmaster and a Daedric Prince at the same time?