Thavius Kreeg
From For Companion and Country
The current High Observer of Elturel, and high priest of Torm. Had summoned Ulder Ravengard to the city (with diplomatic aid from Thalamra Vanthampur) to discuss improving relations between Elturel and Baldur's Gate just prior to the events of the campaign. Presumably lost when the city vanished, although the party discovered he was alive and well, ensconced at the Vanthampur Manor and issuing orders to the Cult of the Dead Three from something called the Shield of the Hidden Lord.
Killed beneath the Manor itself, and the Shield was taken by the party.