Here is a piece from the video game series The Elder Scrolls, from a book called Remanada:
And for four more hundreds of years did the seat of Reman stay sundered, with only the machinations of a group of loyal knights keeping all its borders from throwing wide.
These loyal knights did go by no name then, but were known by their eastern swords and painted eyes, and it was whispered that they were descended from the bodyguard of old Reman. One of their number, called the Chevalier Renald, discovered the prowess of Cuhlecain and then supported him towards the throne.
Could you paraphrase the part in bold? Does it mean that no one knew the knights' names, or that they had no names, or something else?
I feel the whole sentence is trying to show some kind of contrast between the importance of their names and swords/eyes, as if it were saying, They were known not by their names but swords and painted eyes, though I might be wrong.