Duke Oswin Unicorn is a character that appears in Might & Magic X: Legacy. He is the ruler of the Unicorn Duchy.
In the The Falcon & The Unicorn DLC, Oswin attempted to overthrow Empress Gwendolyn Falcon. He was stopped by the player's party, aided by Lord Kilburn and Rosalie.
Oswin was banished for his crimes, and Lord Kilburn was appointed as the new duke by the Empress herself.