Editing Ultima Founding (section)

===Unknown Parentage===
*[[Black Vultures]]
*[[Knights of Thunder]], mentioned in the Blood Angels codex as having had their chapter's name inscribed in many victory monuments throughout the [[Imperium of Man]].
*[[Nemesors]], mentioned in the Chaos Space Marines codex as the first encounter of [[Fabius Bile]] with the Primaris Marines.
*[[Rift Cobras]]
*[[Silver Drakes]], mentioned in the Tyranid codex as having been ordered by Girlyman to turn back [[Hive Fleet Ouroboris]]' advancement.
*[[Umbral Knights]], mentioned in the Space Marines codex offhand as, like the [[Rift Stalkers]], remaining on the planet they had been responsible for taking, to hold and consolidate.
*[[Valiant Blades]], mentioned in the Imperial Knights codex as having received a plea for help from House Hawkshroud and answering it, despite it not being meant for them.