Maldovar Colquan is a member of the Adeptus Custodes and spent many years on Terra holding vigil over the Emperor until the resurrection of Roboute Guilliman. Following Tribune Italeo's death in the Second Battle of Terra, Colquan was chosen to replace him as Tribune and served as a liaison between Lord Commander Guillman and Captain-General Trajann Valoris. He joined the Indomitus Crusade and led its Custodes contingent for over a century, including taking part in the Battle of Raukos, which signalled the Crusade's end. While Colquan served alongside Guilliman, the Lord Commander noted that the Tribune's time on Terra had dulled much of his strategic sense, and he displayed a level of disdain for unaugmented humans that disturbed Guilliman.
- 1: Dark Imperium (Novel) Chapter 6
- 2: Watchers of the Throne: The Emperor's Legion (Novel), Valerian Chapter 9