House Do'Urden (short for Daermon N'a'shezbaernon) is a fictional clan of dark elves in the Forgotten Realms campaign setting, created by R.A. Salvatore. It is one of Houses of the Underdark drow city of Menzoberranzan which first appeared in Homeland. It was Tenth House of Menzoberranzan at the start of the series. It was the house of the famous drow Drizzt Do'Urden. "Do" means "walkers in", and "Urden" means "the darkness". Thus "Do'Urden" means "walkers in the darkness".