The Crimson Scars were a powerful vampiric organization that existed during the Third and Fourth Era. It was created and led by Greywyn Blenwyth, Tamriel's most powerful vampire assassin. The Scars originally split from the Dark Brotherhood and were founded in order to destroy and replace them as the foremost assassins guild in Tamriel. The Scars were ambushed by the Dark Brotherhood who had gotten word of the rebellion, and the Scars were dispersed. The remaining Scars fled with Greywyn and secluded themselves in Blackwood and the town of Weye.