Father Donavich was the local priest in the village of Barovia. His son, Doru, was turned into a vampire spawn by Strahd. When the Wafflecrew met him, he reluctantly allowed them to go and deal with his son, who was being kept in the basement. The Wafflecrew failed to deal with him adequately, and the young vampire spawn escaped.[1]
Later, when Paultin was Strahd's guest in Castle Ravenloft, he saw that Strahd had killed Donavich. The priest's corpse was sprawled out on the floor. [2]