Board Thread:Lore Discussion/@comment-5407287-20130712181915/@comment-6881629-20130712194448

The order was founded in 3E 111 well after Tiber Septim died in 3E 38 it was always The Knights of the Nine.

I loved that DLC so i was wondering that too. Just double checked and there's no actual info about them past the Oblivion Crisis, my guess is they were wiped out fighting in the Great War and/or after the White-Gold Concordat was signed they refused to give up Talos and the Thalmor hunted them down like they did the Blades and as the Knights weren't trained as spies like most Blades the Thalmor actually got everyone of them (although i would hope they went down in a grand last stand).