The House of the Arcane, House Telvanni has been a major part of Morrowind government for the majority of its life.
The wizard-lords of House Telvanni have traditionally isolated themselves, pursuing wisdom and mastery in solitude. But certain ambitious wizard-lords, their retainers, and clients have entered whole-heartedly into the competition to control and exploit Vvardenfell's land and resources, building towers and bases all along the eastern coast.
Their headquarters is on the island of Tel Aruhn, Zafirbel Bay, Vvardenfell.