Thronekeeper
Lord of House Vaughn
The Thronekeeper was the lord of House Vaughn and father of Richard and his brothers, willing to turn on his own family to preserve his position. Lynaria recalls that when his son Henry II urged peace during the rebellion against Dethrix, he feigned surrender, poisoned the rebels and sympathetic knights, and stabbed Henry. Lynaria killed him and his conspirators, while Valen took the blame.
His return through necromancy preserves that willingness to use a son against others. With his soul tethered to enchanted armor, he calls Richard treacherous and makes him a weapon against those trying to stop him. Lynaria, Victoria and Alteon end the renewed threat.
Sources
Lorekeeper Chandra · Richard Vaughn's quests · Victoria at Castle Bocklin