Board Thread:Lore Discussion/@comment-24.44.141.89-20131016215436/@comment-58.182.36.235-20170125135015

Dude jyggalag is the strongest he predicted that he would die by letting himself die on purpose so as to be free from Sheograth. He even said "now I'm free". Also daedric princes can't die and so jyggalag is still the strongest. You beating him doesn't count as in reality he would just crush you if he was in his full strength. The game let you beat him so that you can clear the DLC. Furthermore even if you were to beat him you actually beat him with the help of sheograth and against a jyuggalag that is weakened from a curse and not in his full power state.