Killing the Fortress Lord is the final stage of the destruction of a Fortress. Each Fortress has one Fortress Lord with four bodyguards. When the Fortress Lord has been killed, the remaining guards will despawn and the entire Tier of that realm pairing will be locked by the winning side for 12 hours. If this results in two realm pairings being locked by one side, then it unlocks the city of the opposing faction, putting it into a contested state for 4 hours instead. Destroying a Fortress acts like a PQ and is rewarded with the same system.