Hasan Khan and his father Ibrahim Khan Suri came to India and were granted jagirs (land lordship) in Punjab. Their fortunes swayed with that of their masters and later Hasan moved to Jaunpur and finally to Sasaram. Sher Shah was born in Narnaul and spent his childhood at Sasaram. Early in the 16th century, Sasaram, under Hasan Khan Sur was a part of the Sharqi kingdom of Jaunpur. Sher Shah developed Sasaram into a successful administrative unit. It was an important trading post and often people came here to buy horses and later Sher Shah built a mint here. His currency reform was followed by the Mughals and maintained by the britishers.
These tombs were built under the genius of Alawal Khan, the master architect. He was first commissioned to erect the tomb of Hasan Khan in 1535. A high compound wall encloses Hasan’s mausoleum with gateways on its sides and domed turrets at the corners. Attached to the tomb is the flat roofed prayer hall and madarsa. There is no plinth. The main tomb consists of a large octagonal tomb chamber surrounded by a wide verandah on all the sides. On each of the eight sides, the verandah is provided with three arched openings and three corresponding domes above it. The main tomb chamber rises higher than the domed roofs of the verandah and supports the larger central dome. Within the tomb chamber there are 25 graves, including that of Hasan Khan Suri in the center. The middle story of the monument appears to have been executed hurriedly with just bare walls instead of the kiosks and jalis.