File:Flag Nilfgaard.svg

Summary
This flag created by SMiki55, based on information in the novels

In Season of Storms Geralt received Nilfgaardian sword of Viroledo from Pinety. On blade is located image of Sun with 16 rays, alternately straight and wavy:

Cal powyżej jelca widniała punca w kształcie słońca o szesnastu promieniach, na przemian prostych i falujących, symbolizujących w heraldyce słoneczny blask i słoneczny żar - Season of Storms, page 288 (Polish version)

An illustration from the Czech edition of the Saga and Sapkowski's Czech website depicts the rays and silver and gold alternately.

Used elements from and.