Ahghairon

Ahghairon was the first Open Lord of Waterdeep. A powerful mage, he rose to power in a time of great instability, but went on to secure peace and prosperity for Waterdeep. He was instrumental in creating many of the institutions of Waterdeep today, and is still remembered as the founding father of the city as it is known today.
See also: Volo's Waterdeep Enchiridion.
Ahghairon's Day is celebrated on the first day of Eleasis.