Several monuments dot the pathway leading up to the tomb enclosure from the main entrance in the West. Prominent among them is one that pre-dates the main tomb itself, by twenty years. Constructed in 1547 CE, it is the tomb complex of Isa Khan Niyazi, an Afghan noble in Sher Shah Suri's court of the Suri dynasty, who fought against the Mughals. The octagonal tomb is positioned within an octagonal garden, which was built during his own lifetime and the reign of Islam Shah Suri, son of Sher Shah. It later served as a burial place for the entire family of Isa Khan. On the western side of the tomb lies a three-bay wide mosque, in red sandstone. The octagonal tomb bears a striking resemblance to other tombs of the Sur dynasty monuments in the Lodhi Gardens, in Delhi and demonstrates a marked progression in the development of the exquisite architectural style of the main tomb. Some of the architectural details present here were seen later in the main Humayun tomb, though on a much grander scale, such as the tomb being placed in a walled garden enclosure.