Jurgen by James Branch Cabell

Then Jurgen went back to Chorasma, where Coth, the son of Smoit and Steinvor, stood conscientiously in the midst of the largest and hottest flame he had been able to imagine, and rebuked the outworn devils who were tormenting him, because the tortures they inflicted were not adequate to the wickedness of Coth.

And Jurgen cried to his father: "The lewd fiend Cannagosta told you I was the Emperor of Noumaria, and I do not deny it even now. But do you not perceive I am likewise your son Jurgen?"