Acerus Malum Magnus

Acerus Malum Magnus was the notable Trow that Ewan spoke to as told in Tales From Myth: The Fallen Lords. Ewan was sent by the scholar Antero to find out more about the trow's history for the Antero's Bestiary. Acerus Malum Magnus is the one who spoke to the young scholar of the trow's birth, their views and conflicts with the other races, the fall of their great cities, and why they joined Balor in the Great War.

Acerus may have been a Trow Priest, and it is conceivable that a trow with such innate knowledge to be of scholarly. He is arguably the best Trow given that he is the only notable one.