Menzoberra the Kinless, a powerful priestess of Lolth, founded the city that bears her name in −3917 DR. By the wishes of Lady Lolth, she led seven drow families into the Northdark from the southerly drow holdings of Great Bhaerynden. The drow families, having no immediate external enemy, fell to attacking and undermining one another, as was drow nature, to the greater glory of their evil goddess, who so loved chaos. Only fifty years after the city’s founding, in −3864 DR, a great and terrible battle between the two most powerful Houses, House Nasadra and House S’sril, occurred. This battle led to the exile of House Nasadra (which later founded the city of Ched Nasad, and was the First House until the city’s recent destruction) and to the rise of House Baenre as the First House of Menzoberranzan.
The city’s internal machinations have continued unabated for millennia. The Houses that grow weak are destroyed, and newer Houses rise up to find Lolth’s favor. The full history of each House would constitute a nearly endless logbook of treachery, spite, and unceasing ambition. Within the last century, this pattern seems to have accelerated. House Do’Urden ascended from the Tenth House to the Ninth House by destroying the Fourth House, House DeVir. It then ascended to the Eighth House with the much-needed help of Jarlaxle’s mercenary band Bregan D’aerthe by destroying the Fifth House, House Hun’ett. House Do’Urden lost the favor of Lolth, however, when Matron Malice Do’Urden turned Zaknafein into a spirit-wraith by using Lolth’s dread Zin-Carla ritual and failed to kill Drizzt Do’Urden with him. This resulted in House Baenre utterly destroying House Do’Urden.