Proximo Tarchon
Proximo Tarchon was a member of the Ultramarines Legion active during the Great Crusade and Horus Heresy. A Centurion of the 9th Division, II Battlegroup, 25th Chapter, Tarchon was part of the Ultramarines garrison on Molech under Castor Alcade.
One of the commanders of Molech's System Defence Force, Tarchon was badly injured by Horus himself when his ship, the Guardian of Aquinas, was boarded by the Sons of Horus during the Traitor invasion of the world. Tarchon was captured and brought back to the Vengeful Spirit to be used as a sacrifice in a Daemonic ritual. However, he was later discovered by the Knights-Errant boarding party that had infiltrated the vessel and freed, helping them in their mission to assassinate Horus. During the battle against the traitors in Lupercal's Court, Tarchon managed to slay Serghar Targost, who was possessed by the Daemon Samus. Tarchon was nonetheless badly injured, escaping from the Vengeful Spirit thanks to the efforts of Ares Voitek and being put into a coma so he might heal.[1]