The Seventh House of Betazed is one of Betazed's ancient noble houses, and is known as the "House of Strength" in the archaic traditions. Its ancestral palace, Kar-Undoume, is in Adunor, near Lake Cataria. As of the mid-24th century, Andrus Kelisen held the title of Lord of the Seventh House. (Star Trek: Pendragon: "Heritage", "Broken Destiny")