In Agra, Tomb of Itimad-ud-Daulah is often called ‘baby Taj Mahal.’ It was later used as an inspiration to build the Taj. The tomb was commissioned by Noor Jahan for her father Itimad-ud-Daulah (erstwhile Mir Gheyas Beg) and a minister of Shah Jahan. Done in a harmonius almalgamation of Mughal and Indo-Islamic architecture, this was the first monument to utilise pietra dura and paved way for a whole new era of design.