The Elder Scrolls IV: Knights of the Nine is an expansion pack for the role-playing video game The Elder Scrolls IV: Oblivion. Announced on October 17, 2006, for release on November 21, 2006, the expansion was developed by Bethesda Game Studios, and published and released in North America by Bethesda Softworks; in Europe, the game was co-published with Ubisoft. From Wikipedia
