Legio Invigilata - Notable Personnel: Zarha Mancion - Princeps Majoris of the Stormherald and overall commander of the Legio Invigilata battlegroup that fought in the Battle of Helsreach and comprised a third of the Titan Legion's strength. Mancion was suspended in an amniotic tank that connected her permanently to her Titan's Machine Spirit. At the beginning of the Third War for Armageddon Mancion was still unsure whether her forces would defend Helsreach or if they would be joining the rest of the Legion in the Hemlock region, although she was eventually convinced by the Black Templars Reclusiarch Grimaldus to do the former. The Stormherald 's Machine Spirit was resentful at being bound to its Princeps, and for years of their enforced cooperation it had patiently weakened Mancion's mental resolve, seeking to finally drown her in its mindscape -- an effort only made easier as she aged. The Titan's work was causing Mancion to not be in complete control of her thoughts, and the flood of the Titan's mental gestalt led her to undertake brazen and tactically unwise actions. At one point during the Battle of Helsreach, the Stormherald nearly succeeded in overthrowing her will -- when the Draconian fell to an Ork trap and was destroyed by the xenos, Zarha Mancion was overcome with anger and foolishly strode ahead of her screens and Skitarii fire support seeking vengeance, only to fall to a similar trap moments later. The damage inflicted by the Greenskins and the shame of defeat caused her to loosen her grip on the recalcitrant Machine Spirit of her Titan -- and be very nearly overwhelmed by it. The Titan and its Princeps would have been lost had it not been for the intervention of a Black Templars strike force under the command of Reclusiarch Grimaldus. The Astartes cleansed the God Machine of xenos taint and their Chaplain helped Zarha Mancion emerge from the psychic maelstrom that is a Titan's mental landscape. She would continue to fight, although her grip on the Titan and on reality itself had been weakened. She became reckless, and the Machine Spirit's savagery became more apparent in her actions. Zarha Mancion would ultimately die in battle against the colossal Ork Mega Gargant known as the Godbreaker. In the later stage of the fight, Mancion, because of the damage inflicted upon the Titan and the resulting psychosomatic pain and wounds, was nearly completely useless, and the war engine was operated by her Moderati, Lonn and Valian Carsomir. Despite their efforts, however, the Godbreaker succeeded in destroying the Stormherald.Valian Carsomir - Moderati Primus of the Imperator-class Titan Stormherald and Princeps Majoris Zarha Mancion's representative to the Imperial command structure for the Legio Invigiliata battlegroup she commanded during the Third War for Armageddon. During the fight with the Mega Gargant Godbreaker, Carsomir decided to fire the Plasma Annihilator as soon as it recharged against Moderatus Lonn's advice, without waiting for the Titan's Tech-adepts to bring the weapon's stabilisers back on line. Because of this, the barrel trailed off-target under the force of its shot, and the searing projectile it spewed out missed the giant xenos walker -- thus sealing the Stormherald 's fate. Carsomir realised that there was no escape, and closed his eyes waiting for death. However, he was shot through the head instead by Lonn, who killed him for dooming the Titan with his foolishness.Lonn - Moderati Secundus of the Imperator-class Titan Stormherald. Lonn killed Valian Carsomir after the latter had doomed the God Machine to destruction by the Godbreaker. Lonn miraculously survived the Stormherald's destruction, only to be killed seconds later by Orks as they swarmed the downed Titan to loot it.Amasat - Amasat was the Princeps of the Warlord-class Titan Bane-Sidhe, heir to Princeps Majoris Zarha Mancion's title and, following her demise, commander of the Legio Invigilata battlegroup she had led. Amasat escorted the Ordinatus Armageddon to Helsreach so that it could be used to destroy the massive Ork Mega Gargant Godbreaker. Near the Temple of the Emperor Ascendant Amasat decided to lure the colossal xenos Titan out, and although he succeeded, he and his Titan were destroyed in the process. Although it may seem ignominous that such an exalted God Machine met its end as a bait, within the Legio Invigilata 's records, the war engine and its crew are regarded with the greatest reverence.Asavan Tortellius - Asavan Tortellius was a priest of the Ecclesiarchy who preached in the massive cathedral dedicated to the Emperor of Mankind in his aspect as the Omnissiah that had been built above the Stormherald 's shoulders. During the Battle of Helsreach, Tortellius realised that he was of no use to the people of the hive city in this unreachable edifice, and decided to abandon the Stormherald. Once on the ground, he joined a unit of city militia led by an Armageddon Steel Legion Storm Trooper that he had encountered, and with it he made way to the Temple of the Emperor Ascendant, one of the last bastions of Imperial control in the city. Tortellius was the only priest who had experience in preaching during battle, and was of great use in comforting the populace enclosed and trapped within the temple. Although he survived the Battle of Helsreach itself, he died two weeks later as a result of a heart attack.Jacen Veragon - Veragon was the Princeps of the Reaver-class Titan Draconian. Veragon was the first of the Legio Invigilata Princeps to be killed during the Battle of Helsreach. He was caught in a crude trap set up by the Orks which brought his Titan down, and allowed the Greenskins to storm the war engine and kill the crew.Feerna - Feerna was the Princeps of the Warhound-class Titan Regal. She was the first of the Legio Invigilata to be killed by Ork Gargant Godbreaker during the Battle of Helsreach. The colossal xenos Titan loomed out of the fiery inferno that was consuming the hive city and caught her by surprise. She never realised what caused her demise.Haven Havelock - Havelock was the Princeps of the Warhound-class Titan Ivory Fang. He accompanied Feerna on a task to investigate a heat signature similar to those of the Ork Gargants in the inferno consuming the hive city, and he was the first to see the colossal Mega Gargant known as the Godbreaker. He had sensed Feerna's death at the hands of this monstrosity, and shortly after he made contact with it he was obliterated by a hail of fire from the Ork walker's many weapons.