Chapter Master Marius Gage

First Captain Marius Gage, Legion Praetor of the Ultramarines Legion

A Praetor is a bygone rank for a senior Astartes officer of the Space Marine Legions used during the Great Crusade and Horus Heresy eras in the late 30th and early 31st Millennia. The Praetors were the mightiest warriors and battle-leaders of the ancient Legiones Astartes, second only to the god-like Primarchs in martial skills and generalship. These lords of the Imperium of Man held the power of life and death over whole worlds, with the direct control of entire Imperial war fleets and armies in their hands. Each was a greatly experienced warrior and warlord, unique in character, who had written a legend in blood for themselves, and carried into battle the finest wargear and weapons known to Mankind at that time. In their ranks could be found Chapter Masters and Lord Commanders, First Captains, Khans and Tribunes as the traditions and cultures of their individual Legions dictated. They were the masters of war who commanded the hosts of the Great Crusade that  conquered worlds unnumbered.


During the time of the Great Crusade in the late 30th Millennium, Space Marine Legions were vast engines of war whose super-human warriors numbered in the tens of thousands or even hundreds of thousands of superhuman warriors. The full panoply of war of an Astartes Legion was a terrible thing to behold, and was capable of obliterating entire civilisations through a variety of deadly means ranging from sheer brute force and numbers, armoured assault waves, murderous siege-craft or overwhelming and relentless attacks from close orbit. The particular methods of such exterminations were overseen by the high commanders of the Legions, select individuals that brought decades of experience and acquired tactical acumen to the ruin of Mankind's foes.

Notable Praetors

Legion Number Legion Name Legion Title Name Loyalty Status
I Dark Angels Master of Caliban Luther Traitor Banished to Caliban following an attempted assassination attempt on the Dark Angels' Primarch Lion El'Jonson, Luther was charged with being the active Regent of Caliban and with the selection and training of new recruits for the Dark Angels. Ironically, Luther would eventually betray the Lion after allowing himself to be seduced by the offers of Chaos, rallying a good portion of his fellow Dark Angels to his cause, who became known as the Fallen Angels. Jonson confronted the Chaos-corrupted Luther, and in a great conflagration, Caliban was destroyed in the aftermath. Deep within the bowels of The Rock, the remnant of the I Legion's lost homeworld, and now their mobile Fortress-Monastery, Luther has been kept alive for ten thousand standard years inside a stasis field.
III Emperor's Children Lord Commander Eidolon Traitor Alive
III Emperor's Children Lord Commander Vespasian Loyal Deceased
III Emperor's Children Lord Commander Anteus Loyal Deceased
III Emperor's Children Lord Commander Cyrius Traitor Deceased
III Emperor's Children Lord Commander Iddinam Traitor Deceased
III Emperor's Children Lord Commander Illois Loyal Deceased
III Emperor's Children Lord Commander Teliosa Loyal Deceased
IV Iron Warriors Warsmith Forrix Traitor Deceased
IV Iron Warriors Warsmith Berrosus Traitor Deceased
IV Iron Warriors Warsmith Barabas Dantioch Loyal Unknown
IV Iron Warriors Warsmith Kroeger Traitor Deceased
IV Iron Warriors Warsmith Harkor Traitor Deceased
IV Iron Warriors Warsmith Barban Falk Traitor Ascended to Daemonhood as a Daemon Prince
IV Iron Warriors Warsmith Honsou Traitor Commands a massive warband of Chaos Space Marines on Medrengard
IV Iron Warriors Warsmith Kolvax Traitor Deceased
IV Iron Warriors Warsmith Toramino Traitor Alive
IV Iron Warriors Warsmith Zhorisch Traitor Leads a massive warband of Chaos Space Marines that currently plagues the Jericho Reach
V White Scars Khan Jubal Khan Loyal Stood by his Primarch Jaghatai in the stalwart defence of the Imperial Palace during the Battle of Terra.
VI Space Wolves Wolf Guard Bjorn the Fell-Handed Loyal Following the disappearance of Primarch Leman Russ, he became the first Great Wolf of the Space Wolves Chapter. Mortally wounded and interred within a Dreadnought. He awaits the day of the Wolf King's return.
VII Imperial Fists First Captain Sigismund Loyal Stood by his Primarch Rogal Dorn in the stalwart defence of the Imperial Palace during the Battle of Terra. Following the Second Founding, became the first Chapter Master of the Black Templars Chapter.
VIII Night Lords First Captain Jago "Sevatar" Sevatarion Traitor Killed during the Battle of Terra.
VIII Night Lords First Captain Zso Sahaal Traitor Designated by the Night Lords' Primarch Konrad Curze to serve as his successor as leader of the VIII Legion just before his assassination on the world of Tsagualsa following the end of the Horus Heresy in the early 31st Millennium. Current whereabouts are unknown.
IX Blood Angels Chapter Master Raldoron Loyal Stood by his Primarch Sanguinius during the stalwart defence of the Imperial Palace during the Battle of Terra. Became the first Chapter Master of the Blood Angels Chapter following the Second Founding.
X Iron Hands First Captain Gabriel Santar Loyal Killed during the Drop Site Massacre of Istvaan V by the Traitor Emperor's Children First Captain Julius Kaesoron
XII World Eaters Centurion Khârn the Betrayer Traitor Became a Chaos Champion of Khorne the Blood God. Sundered his Legion following the Battle of Skalathrax, scattering the World Eaters into separate Chaos Warbands. Earned the epithet "Betrayer" for turning on his own Battle-Brothers in a berserker rage.
XIII Ultramarines First Captain and Praetor Marius Gage Loyal Gage became the first Chapter Master of the reorganised Ultramarines Chapter following the death of their Primarch Roboute Guilliman at the hands of the Daemon Primarch Fulgrim of the Emperor's Children Traitor Legion.
XIV Death Guard First Captain Calas Typhon Traitor The first Astartes of the Death Guard to turn to the service of Chaos in his desire for power, First Captain Typhon became the corrupted Typhus, Herald of Nurgle and the Host of the Destroyer Hive, perhaps the most terrible of the many pestilences unleashed on the universe by Nurgle the Plague God.
XIV Death Guard Battle-Captain Nathaniel Garro Loyal Unknown
XV Thousand Sons First Captain Ahzek Ahriman Traitor Following the destruction of their homeworld of Prospero at the hands of the Space Wolves during the Burning of Prospero, the Thousand Sons were brought to a planet prepared for them by their patron Chaos God Tzeentch. As the Thousand Sons began to suffer from extreme corruption, Ahriman enacted the spell known as the Rubric of Ahriman, halting his Legion's corrupting mutations, but which resulted in the creation of the undead Rubric Marines. Ahriman seeks to gain access to the Black Library, the Eldar's forbidden repository of knowledge concerning Chaos.
XVI Sons of Horus (Luna Wolves) First Captain Ezekyle Abaddon Traitor Following the defeat of Warmaster Horus by the Emperor during the conclusion of the Horus Heresy at the Battle of Terra, First Captain Abaddon fled with his Legion to the Eye of Terror. While there, he rebuilt his Legion and cast off their old identity,transforming them into the Black Legion. Abaddon became known as Abaddon the Despoiler, a Warmaster of Chaos and the most powerful Chaos Lord within the Eye of Terror. He has continued to fight the Long War against the hated Imperium of Man leading many of the Black Crusades over the course of ten thousand standard years.
XVII Word Bearers First Captain Kor Phaeron Traitor First Captain and Black Cardinal (High Priest) of the Word Bearers Legion, It was Kor Phaeron's influence and continuing devotion to the Colchisian Old Faith -- a faith dedicated to the Dark Gods -- that corrupted his Primarch and the XVII Legion into repudiating their oaths to the Emperor of Mankind and becoming willing pawns of Chaos. Now he resides as a leading Dark Apostle of the Dark Council, the ruling body that leads the Word Bearers from the Daemon World of Sicarus.
XVIII Salamanders First Captain Numeon Loyal Became the first Chapter Master of the Salamanders following the disappearance of their Primarch Vulkan.
XIX Raven Guard Commander Branne Nev Loyal Following the Drop Site Massacre of Istvaan V, Comander Branne Nev led the mission that resulted in the successful combat extraction of Primarch Corax and the few Raven Guard Astartes who survived the massacre from Istvaan V. Branne was appointed by Corax to serve as the Legion's new Master of Recruits.
XX Alpha Legion Primarch Omegon Traitor Commander of the Effrit Stealth Squad, Omegon often operated under various disguises to keep secret the existence of the Alpha Legion's twin Primarchs as well as performing clandestine operations for his Legion. One of the twin Primarchs of the Alpha Legion was killed after confronting Ultramarines' Primarch Roboute Guilliman following the Horus Heresy, and the other assumed the mantle of sole leadership of the XX Legion. It is not clear whether Alpharius or Omegon was killed.


Optional Wargear (For Praetor Terminators)

Optional Wargear


  • Imperial Armour - The Horus Heresy Betrayal - Book One, pg. 188