Humayun died quite young as he slipped a staircase of his palace, leaving behind a vast empire for his thirteen-year-old son Akbar – the Great. He was initially buried in the Purana Qila. His first wife Bega Begum had just come back from Haj and as a memorial for him commissioned this grand tomb structure. It took around 9 years to complete after which Humayun’s body was shifted here!