Delzoun

Delzoun was the great Northkingdom of the Dwarves. Founded in -3900 DR

The name survives as a middle name among modern day dwarves, one of much prestige.

In -100 DR, Delzoun fell to the phaerimms and other dangers. Surface settlements including Citadel Adbar, Citadel Felbarr, Mithral Hall, and Sundabar survived the fall but the underground settlements did not.