Proper noun
Oudh
Dated form of Awadh.
After losing his northern hill territories to King Prithvi, Chauhan Raja Nawal Singh was forced to move to his southern territories (currently Tulsipur / Balarampur in modern-day India) and ruled as one of the largest Taluqdar of Oudh. Source: Internet
In 1854, Berar was annexed, and the state of Oudh was added two years later. Source: Internet
Tughral Togun Khan added Oudh and Bihar to Bengal. Source: Internet