An altar to Mars dedicated by a soldier of legio XI Claudia is shown to have been removed from the fabric of Marton church during restoration work and, along with much of the other stone for the Romanesque tower, nave and chancel probably derived from the Roman small town of Segelocum, Littleborough on Trent. The name of the dedicator, G. IVLIVS ANTONINUS, is discussed in the context of legio XI Claudia deployment on the Lower Danube.