Dol-Estor
Dol-Estor is a drow enclave in Estorium. Founded after Vyrellis's restoration of the kingdom, its existence was kept secret for decades before being publicly revealed in the third millennium.
In 2959, after Tephra opened a portal to the Far Realm in the Temple of the Mind's Eye in Derenath, the sorceress Theriana sought a means to close the planar gate, citing its existence as a threat to Lolth. After rescuing Vyrellis from the Pyramid of Shadows, a deal was worked out in which Vyrellis would get to rule Estorium in exchange for granting the drow a place within her new kingdom. Vyrellis eventually betrayed Theriana to the Brightstone Heroes, but a group of drow broke away from their leader and asked her to uphold their former arrangement; Vyrellis agreed, on the condition that they renounce the worship of Lolth. Finding the terms acceptable, they called their new enclave Dol-Estor, and lived in secret for many years, with Vyrellis arranging for supplies to be clandestinely teleported to them.
At the start of the year 3000, as part of the millennial celebrations taking place, Vyrellis publicly revealed the existence of Dol-Estor, declaring that Estorium would grant amnesty and protection to all drow willing to renounce the Spider Queen and live as fellow Estorians.