Battle of Chausa was fought near Buxar. Humayun was badly defeated and Sher Khan adopted the title of Sher Shah. Humayun barely escaped with his life from the battle field.
Abul Fazl who was one of the courtiers who were collectively known as Akbar’s Navratnas (or nine jewels). He wrote Ain-i-Akbari and Akbar Nama. He Lead the Mughal imperial army in its wars in Deccan but was murdered by Bir Singh Bundela.