The House of Armagnac was a Libaterran noble family which resided in Etheril for generations. It was among the most influential merchant houses in Northern Libaterra along with its competitors, the House of Seneron and the House of Whitehawk. The Armagnacs helped introduce the Clergy of Nergal to the city and managed to involve several other noble houses in their schemes. Eventually the final ruler of the house, Fastholf d'Armagnac, became the High Cleric of Nergal, until he was slain in a duel against Yoshimuriko during the Libaterran Civil War. With the Armagnacs and Whitehawks gone, the House of Seneron became the wealthiest merchant family in Etheril.