Mir Ahmed Ali Khan Siddiqi Bayafandi, Nasir Jung, was the son of Nizam-ul-Mulk by his wife Saeed-un-nisa Begum.
He was born 26 February 1712.
He succeeded his father as the Nizam of Hyderabad State in 1748.
He had taken up a very pompous title of Humayun Jah, Nizam ud-Daula, Nawab Mir Ahmad Ali Khan Siddiqi Bahadur, Nasir Jung, Nawab Subadar of the Deccan.
However, he is most famously known as Nasir Jung.
The Mughal Emperor Muhammad Shah bestowed him with the title Nasir Jung and later the next Mughal Emperor Ahmad Shah Bahadur appointed him as the Subedar of the Deccan and bestowed him with the title Nasir-ud-Daula.