Excerpt from the intoduction: The following rules for the Dark Ages line are intended to allow players to use any of the hardcover supplementary rulebooks (Dark Ages:Mage, Dark Ages:Werewolf, Dark Ages:Inquisitor, Dark Ages:Fae) without having to purchase Dark Ages:Vampire. These rules have been excerpted from Dark Ages:Vampire, but have had most vampire-specific information and rules removed. They contain only the basics of the game system, stripped of optional and much supplementary advice and material. With this in mind, those wishing to play a Dark Ages:Vampire chronicle should use that book instead, as many important vampire-specific details have been removed
Most of this material is taken from Dark Ages:Vampire. Some of the weapons and combat are taken from the Spoils of War sourcebook.