The Legio Agravides was a Loyalist Titan Legion of the Collegia Titanica, one of the military arms of the Adeptus Mechanicus. While suspected to have been founded before the Age of the Imperium, during the Age of Strife, it is generally believed that the Legion was destroyed in the opening days of the Schism of Mars in the earliest 31st Millenium during the era known as the Horus Heresy. It is unknown if the Legio Agravides still exists to this day and much of its records and history has been lost.