What is sir salimullah?

Some articles on sir salimullah, sir:

Khwaja Salimullah - Legacy
... Sir Salimullah is regarded in both Bangladesh and Pakistan as a great freedom fighter ... who was the Governor of Calcutta, his grandson Sir Khwaja Nazimuddin who was the second Prime Minister of Pakistan, his great grandson Khwaja Hassan Askari ... Sir Salimullah's great leadership had transformed the Dhaka Nawab Family into one of the most historic and significant political dynasties in the Indian ...