By 1518, he had become independent from the Bahmani sultan, declared himself the Sultan under the name of Quli Qutb Shah and established the Qutb Shahi dynasty.
In 1591, he ordered the construction of the Charminar, reportedly in gratitude to Allah for cutting short a plague epidemic before it could do too much damage.
The name "Hyderabad" reportedly had its origins in an affair between Mohammad Quli Qutb Shah and a local Telugu courtesan named Bhagmati.
The British maintained their army in nearby Secunderabad to protect the Nizam and to ensure that he did not do any mischief.
Hyderabad state was the richest in the country and in the 1930s Time magazine rated the Nizam the richest man in the world.
Many visitors never make it past the attractions in Old City, but you haven't truly seen Hyderabad until you have ventured out into the neighborhoods.