Order of the Silver Dragon

The Order of the Silver Dragon was an order of knights that came to Barovia long ago under the leadership of a mysterious nobleman named Argynvost. They perished in the year 351, according to The Silver Order. They seem like the likely former inhabitants of the haunted manor southwest of Vallaki, based off the information contained within that book. They are likely the order to which the revenant that attacked Doru while he was with the party early in their time in Barovia.