Ahghairon

Ahghairon was a human mage from Northwest Faerûn and the first Open Lord of Waterdeep. He created the Lords of Waterdeep, the system by which Waterdeep has been ruled ever since, except for a six-year period immediately following his death.

Background
Ahghairon used his magic to win the human battle against the trolls when they were pushed down into the area now known as the Trollmoors by orc uprisings further north. At this time, Waterdeep was ruled by the Warlord Rhaulor, who wanted to use the city's power and wealth to create an empire spanning Northwest Faerûn. Ahghairon strongly disagreed with this, and when he voiced his concerns, Rhaulor attacked him. He used his magic to turn Rhaulor's sword into a snake which bit him, poisoning him. Rhaulor died and Ahghairon assumed control of Waterdeep, proclaiming himself the first Open Lord, and establishing a form of government involving Masked Lords, whose identities would remain private.

Death
Ahghairon used potions of longevity to remain in prime physical form even though he was growing old by human standards. Eventually, when his health failed, he died and was buried in his tower in Waterdeep. The tower was sealed off and protected by magic, and it is believed that his resting place has remained undisturbed ever since.

Quotes
"There shall come a time when our city and its deepwater buy shall grow in fame and fortune across many realms and many worlds. Folk shall know of Waterdeep, our City of Splendors, and sing its praises. I have seen it thus, and I endeavor to make it true. "