The possibly immortal Archmage, Zandrik Fallagar of House Jerbiton, has been a member since the turn of the Thirteenth Century, and is currently the only wizard residing there.
Dragonsfall, or members of the Covenant, have appeared in "The Zodiac Imperative", "Chronicles of Gozer", "Enlightenment", "Love Songs", "Coda and Terchi's Extreme Adventure", and "Kyrie Was Here".

Map of Dragonsfall as of 4AAq/AD1994 ("Enlightenment")