This article assesses the value of Marx's Capital for medieval historians and literary historicists. The author objects to a widespread interpretation of the Marxian concept of feudal exploitation on the grounds that it introduces an anachronistic notion of ownership. He argues that an approach to historicism closer to that pursued by Marx in Capital would permit more productive scholarly work on medieval history and social justice. He also argues that Capital raises questions about the value of conventional historicism similar to those that are presently of concern to many medievalists.