World of Warcraft Quests involving Crusader Lord Valdelmar:
Eastern Plaguelands Horde Quest
Nathanos' Ruse Travel to Tyr's Hand, southeast of the Marris Stead. Once there, take a bite of the Rotten Apple. While under the guise of the Scarlet Crusade, deliver the Grand Crusader's Command to Crusader Lord Valdelmar.
Eastern Plaguelands Alliance & Horde
The Battle of Darrowshire Place the Relic Bundle at the Darrowshire town square.
Prevent Davil Lightfire's death until the death of Horgus.
Prevent Captain Redpath's death until Redpath the Corrupted appears.
Defeat Redpath the Corrupted.
Speak with the spirit of Joseph Redpath when he appears at the town square, then speak with Pamela at her home.