Talus IV was the homeworld of the Brazen Claws Space Marine Chapter. In the latter half of the 41st Millennium, Talus IV was destroyed by a bloodthirsty horde of daemons and the Brazen Claws Chapter was forced to flee the planet as it fell to Chaos. Ever since, the Brazen Claws have embarked on an Imperial Crusade of bitter vengeance against Renegade strongholds and Chaos-tainted worlds surrounding, and even within, the Eye of Terror.
Little record of the actions or whereabouts of the Brazen Claws exist within the Imperium's archives since they launched this Crusade, but Lord Castellan Ursarkar E. Creed of Cadia insisted that they had been sighted on numerous battlefields around the Fortress Worlds of the Cadian Gate during the 13th Black Crusade in 999.M41, fighting against the Forces of Chaos led by Abaddon the Despoiler. Elements of the Chapter appeared in force to take the fight to their hated enemy on every possible occasion.
- Codex Adeptus Astartes - Space Marine (8th Edition), pg. 57
- Codex: Space Marines (3rd Edition), pg. 37
- Codex: Space Marines (5th Edition), pg. 30