Ched Nasad

Ched Nasad was a powerful drow city in the Underdark which was overthrown by the machinations of Jaezred Chaulssin during the War of the Spider Queen. It is currently, as of 1375 DR, being reshaped by the Jaezred Chaulssin in the image of a non-matriarchal drow city. The city is found in the Middle Northdark region and is also known as the City of Shimmering Webs as it was formerly suspended one more than a hundred calcified webs.

Reference
Ched Nasad
 * Insurrection
 * Sacrifice of the Widow