Humayun is a very interesting character among the big 6 Mughals that ruled the subcontinent. From being chased out of subcontinent by Sher Shah Suri, to taking refuge in Persia and Kabul, to his fight back to take control of Dehli again, to his death in a freak accident (fell of the stairs and died).

Source: Humayun’s tomb- A blend of styles