The Great Mughals, the first six emperors, are often referred to just by one name, which was, in each case, a title they took as Emperor (Padishah). The relevant title is bolded in the list below.
The emperor (whose title was Badshah or "vice-Shah," in relation to the Shah of Persia, the emperor of all emperors) would grant revenue rights to a mansabdar in exchange for promises of soldiers in war-time.
The greater the size of the land the emperor granted, the greater the number of soldiers the mansabdar had to promise.
Jahangir married a Persian princess whom he renamed Nur Jehan (Light of the World), who emerged as the most powerful individual in the court besides the emperor.