The Duke of Twinoaks, given name unknown, served as a General in the Imperial Army at the start of Tortaalik's reign. Twinoaks led a portion of the Imperial Army, which included Uttrik, Lady Duraal, and possibly Tazendra's cousin, Tynn, to victory against Kliburr, the rebellious Duke of Fautonswell, in the Carriage House Uprising. Given his rank and occupation, Twinoaks was almost certainly a Dragonlord.