Brotherhood of a Thousand

A later-founding chapter of unknown origin. The Brotherhood follow the Codex Astartes and are loyal to the Imperium of Man. Their armour is painted a bluish grey with the trim on the shoulder pads painted a different colour for each company. Their chapter symbol is a black "M" on a slightly undersized white circle, the M representing the number one thousand. In Rogue Trader days this symbol was the symbol of the Thousand Sons traitor Legion, but this seems to have been ignored since their appearance in Insignium Astartes.