[Nawab of Bengal] Sayyid Mubarak Ali Khan (1759 – September 6, 1793), better known as Mubarak ud-Daulah (spelled also as: Mubarak ud-Daula), was the Nawab of Bengal, Bihar and Orissa. He was the son of Mir Jafar and Babbu Begum. He ascended the throne on March 21, 1770 after his half-brother, Ashraf Ali Khan`s death on March 10, 1770. Mub...