The Legio Ignatum is one of the oldest and most esteemed Legions within the Collegia Titanica. Originating in the pre-Imperial Age of Strife they were, according to the legends of the Martian Lexmechanics, one of the "Triad Ferrum Morgulus" - the three originating Titan Legions created by the besieged Cult Mechanicum during the bloody wars to take back the Red Planet from the degenerate hordes of Cy-Carnivora and mutant scavers that had overwhelmed Mars after the fall. They had a long standing rivalry with their fellow members of the Triad Ferrum Morgulus, most notably the Legio Mortis. The Legion fought throughout the Great Crusade and still retains a number of Titans blessed by the Emperor of Mankind himself at that time. Later, the Legion fought throughout the darkest days of the Horus