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The '''{{PAGENAME}}''' was one part of the [[Orders of the First Dark Angels]] [[Space Marine Legion|OrdersLegion]]'s [[Hekatonystika]] [[Orders Militant of the [[First Legion|Militant Orders]] . It operated during the the [[Great Crusade]] and [[Horus Heresy]], mainly devoted to fighting the [[Rangda]] [[Xenos]].{{Fn|1}}{{Fn|2}}

==History==Formed in the wake of the [[Second Rangdan Xenocide]], this small Order held the only full and complete account of the conflict as well as information on the [[Rangda]]. This detailed catalog was gathered by [[Firewing]] operators and [[Dreadwing]] units and the Orders warriors were trained to stand against the worst Rangdan bio-forms in combat. During the bloody [[Third Rangdan Xenocide]] they won much renowned at combating the Rangdan warmasters, but after the war and with the apparent alleged annihilation of the [[Xenos]] they dwindled in number. By the time of the Horus Heresy only a few members of the order remained, maintaing a single station on the ruined world of [[Advex-Mors]] where the Rangda had first appeared.{{Fn|1}}

During the [[Horus Heresy]], some of the Order's [[Knights Cenobium]] were garrisoned base at [[Advex-Mors]]. When was the [[Sons subject of Horus]] launched a [[Treachery at Advex-Mors|surprise attack]] on the garrison, by the [[Sons of Horus]]. The Order's [[Knights Cenobium]] reaped a fearful tally from the [[Traitor]]s, before they were slain.{{Fn|2}}